Riyanto, Dwi Mahmud Rizki, and Sekar Purbarini Kawuryan. “Development of Natural and Social Science (IPAS) E-Modules Based on Project Based Learning to Improve The Collaboration Ability of Elementary School Students”. Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran 11, no. 1 (March 21, 2025): 237–247. Accessed August 14, 2025. https://e-journal3.undikma.ac.id/index.php/jurnalkependidikan/article/view/14411.