Ramadayani, D., Yahfizam dan Halimah, S. (2021) “PENGEMBANGAN LKPD BERBASIS PROBLEM BASED LEARNING”, Relevan : Jurnal Pendidikan Matematika, 1(1), hlm. 135–142. Tersedia pada: https://www.ejournal.yana.or.id/index.php/relevan/article/view/59 (Diakses: 18 April 2026).