Ningrum, Erna Fitria. “‘Pengaruh Model Pembelajaran Problem Based Learning Berbantuan Media Papan Kompetisi Bangun Datar (Pakom Bantar) TerhadapPemahaman KonsepMatematika’”. Prosiding University Research Colloquium (December 8, 2021): 1199–1211. Accessed May 3, 2024. https://repository.urecol.org/index.php/proceeding/article/view/1902.