AKCAYIR M, 2016, COMPUT HUM BEHAV, V57, P334, DOI 10.1016/J.CHB.2015.12.054;AKDENIZ C., 2016, INSTRUCTIONAL PROCES, P57;AZUMA RT, 1997, PRESENCE-VIRTUAL AUG, V6, P355, DOI 10.1162/PRES.1997.6.4.355;BACH C., 2010, LEARNING ANALYTICS T;CAMPBELL JP., 2007, EDUCAUSE REV, V42, P40;CHAN NN, 2015, COMPUT EDUC, V82, P96, DOI 10.1016/J.COMPEDU.2014.11.001;CHATTI MA, 2012, INT J TECHNOL ENHANC, V4, P318, DOI 10.1504/IJTEL.2012.051815;CHENG KH, 2013, J SCI EDUC TECHNOL, V22, P449, DOI 10.1007/S10956-012-9405-9;CHRISTOPOULOS ATHANASIOS, 2020, JOURNAL OF EDUCATIONAL TECHNOLOGY SYSTEMS, V49, P59, DOI 10.1177/0047239520908838;CHRISTOPOULOS ATHANASIOS, 2018, JOURNAL OF EDUCATIONAL TECHNOLOGY SYSTEMS, V46, P385, DOI 10.1177/0047239518757986;CHRISTOPOULOS A., 2018, INTEGRATING MULTIUSE, P259;CHRISTOPOULOS A., 2020, P 11 INT C INF TECHN;CHRISTOPOULOS A, 2020, EDUC SCI, V10, DOI 10.3390/EDUCSCI10110317;CHRISTOPOULOS A, 2018, VIRTUAL REAL-LONDON, V22, P353, DOI 10.1007/S10055-017-0330-3;CLOW D., 2012, P LAK 12, P134, DOI 10.1145/2330601.2330636;CLOW D, 2013, TEACH HIGH EDUC, V18, P683, DOI 10.1080/13562517.2013.827653;CRESCENZI-LANNA L, 2020, BRIT J EDUC TECHNOL, V51, P1485, DOI 10.1111/BJET.12959;DANIEL B, 2015, BRIT J EDUC TECHNOL, V46, P904, DOI 10.1111/BJET.12230;DI MITRI D, 2018, J COMPUT ASSIST LEAR, V34, P338, DOI 10.1111/JCAL.12288;DILLENBOURG P., 2015, ORCHESTRATION GRAPHS;DYCKHOFF AL, 2012, EDUC TECHNOL SOC, V15, P58;EICHMANN B, 2020, J COMPUT ASSIST LEAR, V36, P933, DOI 10.1111/JCAL.12451;FERGUSON R, 2012, INT J TECHNOL ENHANC, V4, P304, DOI 10.1504/IJTEL.2012.051816;FRENSCH PA, 1995, COMPLEX PROBLEM SOLV, P3;GASEVIC D, 2014, INT REV RES OPEN DIS, V15, P134;GOUNOPOULOS E, 2017, PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON COMPUTER SUPPORTED EDUCATION (CSEDU), VOL 1, P649, DOI 10.5220/0006399606490655;GRELLER W, 2012, EDUC TECHNOL SOC, V15, P42;HASAN R, 2020, APPL SCI-BASEL, V10, DOI 10.3390/APP10113894;IBANEZ MB, 2018, COMPUT EDUC, V123, P109, DOI 10.1016/J.COMPEDU.2018.05.002;KAZANIDIS I., 2010, P 2 INT C COMP SUPP, DOI 10.5220/0002780400460053, DOI 10.5220/0002780400460053;KAZANIDIS I., 2009, P APPL COMP 09 ROM I, P254;KAZANIDIS I, 2020, SOFT COMPUT, V24, P14861, DOI 10.1007/S00500-020-04841-8;KAZANIDIS I, 2019, J UNIVERS COMPUT SCI, V25, P489;KIM MJ, 2013, AUTOMAT CONSTR, V33, P79, DOI 10.1016/J.AUTCON.2012.10.020;LAUDON K.C., 2013, E COMMERCE, V10TH, P1;LIN PH, 2020, IEEE ACCESS, V8, P45689, DOI 10.1109/ACCESS.2020.2977679;LIVIERIS I.E., 2019, COMMUNICATIONS COMPU, DOI 10.1007/978-3-030-20954-4_43, DOI 10.1007/978-3-030-20954-4_43;MAHMOUDI MT, 2017, COMPUT APPL ENG EDUC, V25, P1038, DOI 10.1002/CAE.21853;MOISSA B, 2015, INT J DIST EDUC, V13, P1, DOI 10.4018/IJDET.2015070101, 10.4018/IJDET.2015070101;MOORE KN, 2007, COCHRANE DB SYST REV, DOI 10.1002/14651858.CD006008.PUB2;PELLAS NIKOLAOS, 2019, VIRTUAL REALITY, V23, P329, DOI 10.1007/S10055-018-0347-2;PELLAS N, 2020, IEEE T LEARN TECHNOL, V13, P748, DOI 10.1109/TLT.2020.3019405;PELLAS N, 2017, EDUC INF TECHNOL, V22, P2235, DOI 10.1007/S10639-016-9537-2;PELLAS N, 2014, COMPUT HUM BEHAV, V35, P157, DOI 10.1016/J.CHB.2014.02.048;PENA-AYALA A, 2018, WIRES DATA MIN KNOWL, V8, DOI 10.1002/WIDM.1243;PISHTARI G, 2020, BRIT J EDUC TECHNOL, V51, P1078, DOI 10.1111/BJET.12944;POTKONJAK V, 2016, COMPUT EDUC, V95, P309, DOI 10.1016/J.COMPEDU.2016.02.002;SCIARRONE F., P 17 INT C INF TECHN, DOI 10.1109/ITHET.2018.8424780, DOI 10.1109/ITHET.2018.8424780;SCIARRONE F, 2019, IEEE INT CON INF VIS, P287, DOI 10.1109/IV.2019.00055;SECRETAN J., 2019, P 2019 IEEE INT C EN;SERGIS S, 2017, STUD SYST DECIS CONT, V94, P25, DOI 10.1007/978-3-319-52977-6_2;SHUM SB, 2012, EDUC TECHNOL SOC, V15, P3;SIEMENS G, 2013, AM BEHAV SCI, V57, P1380, DOI 10.1177/0002764213498851;SIEMENS G, 2012, EDUC TECHNOL SOC, V15, P1;SLADE S, 2013, AM BEHAV SCI, V57, P1510, DOI 10.1177/0002764213479366;SONDERLUND AL, 2019, BRIT J EDUC TECHNOL, V50, P2594, DOI 10.1111/BJET.12720;TEMPELAAR DT, 2015, COMPUT HUM BEHAV, V47, P157, DOI 10.1016/J.CHB.2014.05.038;THEES M, 2020, COMPUT HUM BEHAV, V108, DOI 10.1016/J.CHB.2020.106316;THOMAS MSC, 2019, J CHILD PSYCHOL PSYC, V60, P477, DOI 10.1111/JCPP.12973;VALSAMIDIS S., 2010, P 10 IEEE INT ADV LE, DOI 10.1109/ICALT.2010.60, DOI 10.1109/ICALT.2010.60;VALSAMIDIS S., 2010, P 14 PANH C INF PCI, DOI 10.1109/PCI.2010.41, DOI 10.1109/PCI.2010.41;VALSAMIDIS S, 2012, INT J TECHNOL ENHANC, V4, P265, DOI 10.1504/IJTEL.2012.051544;VALSAMIDIS S, 2012, EDUC TECHNOL SOC, V15, P154;VIBERG O, 2018, COMPUT HUM BEHAV, V89, P98, DOI 10.1016/J.CHB.2018.07.027;WANG V. C. X., 2016, HDB RES LEARNING OUT, P402, DOI DOI 10.4018/978-1-4666-9577-1;WU HK, 2013, COMPUT EDUC, V62, P41, DOI 10.1016/J.COMPEDU.2012.10.024;YEH SC, 2013, INTERACT LEARN ENVIR, V21, P184, DOI 10.1080/10494820.2012.705854;YILMAZ R, 2020, J COMPUT ASSIST LEAR, V36, P909, DOI 10.1111/JCAL.12449