Astuti, Novi, and Kusno Kusno. “Upaya Meningkatkan Keterampilan Kolaborasi Siswa Kelas IV SDN Ledug Melalui Model Problem Based Learning Pada Mata Pelajaran IPAS”. Proceedings Series on Social Sciences & Humanities 24 (July 19, 2025): 317–322. Accessed March 12, 2026. https://conferenceproceedings.ump.ac.id/pssh/article/view/1613.