Wardani, Pramesti, and Wasitohadi -. “Pengaruh Model Problem Based Learning Dan Problem Solving Terhadap Kemampuan Pemecahan Masalah Mupel IPA Kelas IV Sekolah Dasar Gugus Sembodro”. Jurnal Ilmiah Wahana Pendidikan 6, no. 2 (April 22, 2020): 176-184. Accessed April 29, 2026. https://jurnal.peneliti.net/index.php/JIWP/article/view/321.