DIOPUTRA, Marvel Ravindra; SIREGAR, Herbert. The Role of Gamification Mechanisms in CRM Systems in Enhancing Customer Loyalty: A Systematic Literature Review. Jurnal Indonesia Sosial Sains, [S. l.], v. 7, n. 3, p. 759–771, 2026. DOI: 10.59141/jiss.v7i3.2254. Disponível em: https://jiss.publikasiindonesia.id/index.php/jiss/article/view/2254. Acesso em: 14 mar. 2026.