Hidayani , Yerni, et al. “Meningkatkan Hasil Belajar Tentang Rukun Iman Ke-5 Melalui Metode Card Sort Dengan Model PBL (Problem Based Learning) ”. EduSpirit : Jurnal Pendidikan Kolaboratif, vol. 1, no. 1, May 2024, pp. 522-8, https://www.journal.makwafoundation.org/index.php/eduspirit/article/view/988.