Herlawan, Herlawan, and Deby Alsah. “The Effect of Group Assignment on Mathematics Learning Achievement in Junior High School Students”. Jurnal Akademik Pendidikan Matematika 8, no. 1 (May 19, 2022): 41-47. Accessed March 29, 2024. https://www.ejournal.lppmunidayan.ac.id/index.php/matematika/article/view/701.