Wulandari, Putri Endah, et al. “Implementation of the Problem-Based Learning (PBL) Model With a Culturally Responsive Teaching (CRT) Approach to Improve Students Learning Outcomes”. Pyramid: Journal of Mathematical Sciences, vol. 1, no. 1, Jan. 2026, pp. 8-15, https://publikasi.abidan.org/index.php/pyramid/article/view/1711.