SURYANDARI, Savitri. Improving Underachiever Students’ Mathematics Learning Outcomes: The Effectiveness of the STAD Model. Borneo Educational Journal (Borju), [S. l.], v. 5, n. 1, p. 106–117, 2023. DOI: 10.24903/bej.v5i1.1270. Disponível em: https://jurnal.fkip-uwgm.ac.id/index.php/Borju/article/view/1270. Acesso em: 26 apr. 2024.