Safenita, Nelia, Lucky Heriyanti Jufri, and Alfi Yunita. “Validitas LKPD Berbasis Project Based Learning (PjBL) Pada Materi Segiempat Dan Segitiga Di Kelas VII SMP Negeri 36 Sijunjung”. Jurnal Pendidikan Tambusai 7, no. 3 (October 19, 2023): 22575–22583. Accessed February 11, 2025. http://jptam.org/index.php/jptam/article/view/10170.