Novilanti, Fini, Weni Susanti, and Suripah Suripah. “Students’ Problem-Solving Ability in Geometry During the Covid-19 Pandemic”. Jurnal Tadris Matematika 4, no. 2 (November 27, 2021): 175-186. Accessed July 3, 2024. https://ejournal.uinsatu.ac.id/index.php/jtm/article/view/4782.