KARIMI, Kianoosh; NICKPAYAM, Javad. RETRACTED: Gamification from the Viewpoint of Motivational Theory. Emerging Science Journal, [S. l.], v. 1, n. 1, p. 34–42, 2017. DOI: 10.28991/esj-2017-01114. Disponível em: http://www.ijournalse.org/index.php/ESJ/article/view/19. Acesso em: 29 jun. 2025.