Roy Kolibu, D., and S. . Daniel. “Evaluating the Effectiveness of Contextual and Problem-Based Learning Approaches in the Pedagogical Practice of Christian Religious Education”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, vol. 17, no. 1, June 2025, pp. 655-68, doi:10.37680/qalamuna.v17i1.7125.