Purba LSL, Sormin E, Harefa N, Sumiyati S. Effectiveness of use of online games kahoot! chemical to improve student learning motivation. J.Pendidik.Kim [Internet]. 2019 Aug. 30 [cited 2025 Jul. 7];11(2):57-66. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/14463