Safitri, L., Hidayati, N. and Suryanti, S. (2025) “Integrating Problem-Based Learning into E-Modules : A Development Study with Validation and Student Response Analysis”, Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran, 11(1), pp. 397–409. doi: 10.33394/jk.v11i1.14836.