Hardiyanti Ali, Rini, and Sahrul Sahrul. “Praktikalitas LKPD Berbasis Problem Based Learning Pada Materi Bangun Ruang Sisi Datar”. Apotema : Jurnal Program Studi Pendidikan Matematika 10, no. 2 (July 31, 2024): 150–162. Accessed May 11, 2025. https://publikasi.stkippgri-bkl.ac.id/index.php/APM/article/view/1078.