ARNOLD K. E., 2012, P 2 INT C LEARN AN K, P267, DOI DOI 10.1145/2330601.2330666, 10.1145/2330601.2330666;BAKHSHINATEGH B, 2018, EDUC INF TECHNOL, V23, P537, DOI 10.1007/S10639-017-9616-Z;BROER J., 2017, THESIS;BROWNE KEVIN, 2016, THESIS;CAKIROGLU O, 2017, COMPUT HUM BEHAV, V69, P98, DOI 10.1016/J.CHB.2016.12.018;CALDERON A, 2015, COMPUT EDUC, V87, P396, DOI 10.1016/J.COMPEDU.2015.07.011;CATON H, 2014, INT J GAME-BASED LEA, V4, P1, DOI 10.4018/IJGBL.2014070101;CHEN J, 2007, COMMUN ACM, V50, P31, DOI 10.1145/1232743.1232769;CHOU Y., 2015, ACTIONABLE GAMIFICAT;DETERDING S., 2011, P 15 INT AC MINDTREK, P9, DOI DOI 10.1145/2181037.2181040;DIAS J, 2017, INT J MANAG EDUC-OXF, V15, P98, DOI 10.1016/J.IJME.2017.01.002;DUDZINSKI MACIEJ, 2013, EUR C GAM BAS LEARN;FEW S, 2006, INFORM DASHBOARD DES;HAMARI J., 2013, ECIS, V105;HAUGE JB, 2014, IEEE INT CONF ADV LE, P230, DOI 10.1109/ICALT.2014.73;JACOBS JM, 2016, THESIS;LANG C, 2015, THESIS;LEE S. J., 2014, ED DATA MINING 2014;LEWTHWAITE B, 2014, CAN J EDUC ADM POLIC, P1;MARSHALL, 2018, GSTF J COMPUTING JOC, V6, P1;MISSURA OLANA, 2015, DYNAMIC DIFFICULTY A;PASTUSHENKO OLENA, 2018, TRENDS AND ADVANCES IN INFORMATION SYSTEMS AND TECHNOLOGIES. ADVANCES IN INTELLIGENT SYSTEMS AND COMPUTING (746), P980, DOI 10.1007/978-3-319-77712-2_93;PASTUSHENKO O, 2018, SIXTH INTERNATIONAL CONFERENCE ON TECHNOLOGICAL ECOSYSTEMS FOR ENHANCING MULTICULTURALITY (TEEM'18), P755, DOI 10.1145/3284179.3284310;PETERS MICHAEL A, 2011, TRANSF AM ED LEARN P;PLECHER DA, 2018, PROCEEDINGS OF THE 2018 ANNUAL SYMPOSIUM ON COMPUTER-HUMAN INTERACTION IN PLAY COMPANION EXTENDED ABSTRACTS (CHI PLAY 2018), P577, DOI 10.1145/3270316.3271536;PODGORELEC V, 2011, ELEKTRON ELEKTROTECH, P111;RAO R., 2017, THESIS;RUIPEREZ-VALIENTE JA, 2018, EXPERT SYST, V35, DOI 10.1111/EXSY.12298;SAILER M, 2013, INTERACT DES ARCHIT, P28;SZABO KRISZTINA, 2017, RICERCAZIONE, P51;WESTERA WIM, 2014, SERIOUS GAMING ANAL;WORSLEY M, 2012, ICMI '12: PROCEEDINGS OF THE ACM INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION, P353;WORSLEY MARCELO, 2016, 12 INT C LEARN SCI T;YE FEIFEI, 2014, VALIDITY RELIABILITY;YOO Y, 2015, LECT N EDUC TECHNOL, P145, DOI 10.1007/978-3-662-44188-6_21;ZORRILLA M., 2010, P 2010 EDBT ICDT WOR, P11, DOI DOI 10.1145/1754239.1754252