SYEDA HIRA FATIMA NAQVI, J. A. F. H. C. . AN INVESTIGATION INTO STUDENT PERCEPTIONS: THE GAMIFICATION OF E-LEARNING SYSTEMS. Pakistan Journal of Educational Research , [S. l.], v. 6, n. 2, 2023. DOI: 10.52337/pjer.v6i2.878. Disponível em: http://www.pjer.org/index.php/pjer/article/view/878. Acesso em: 16 apr. 2026.