F. Ranuharja, A. T. Toukoumidis, J. Oluwaseyi, W. Lofandri, A. D. Samala, and A. R. Riyanda, “Investigating the impact of mobile interaction gamification on 4C skills: Perspective from student at vocational higher education in Indonesia”, AMLER, vol. 4, no. 2, pp. 1082-1092, Jun. 2024.