Fitri, Mahmidatul, Putri Yuanita, and Maimunah Maimunah. “Pengembangan Perangkat Pembelajaran Matematika Terintegrasi Keterampilan Abad 21 Melalui Penerapan Model Problem Based Learning (PBL)”. Jurnal Gantang 5, no. 1 (March 31, 2020): 77–85. Accessed December 19, 2024. https://ojs.umrah.ac.id/index.php/gantang/article/view/1609.