PUSPITASARI, A.; MASRUROH, N. A. Reducing Customer Churn for XL Axiata Prepaid: Factors and Strategies. Journal of Industrial Engineering and Education, [S. l.], v. 2, n. 1, p. 83–107, 2024. Disponível em: https://jiee.bksti.org/index.php/iee/article/view/40. Acesso em: 1 may. 2026.