OKTAVIA, A. N.; HERMAN, T.; HASANAH, A. Exploring Students’ Argumentation Ability in Mathematical Problem Solving Based on Levels of Productive Struggle. Jurnal Pembelajaran, Bimbingan, dan Pengelolaan Pendidikan, [S. l.], v. 6, n. 5, p. 7, 2026. DOI: 10.17977/um065.v6.i5.2026.7. Disponível em: https://journal3.um.ac.id/index.php/fip/article/view/8156. Acesso em: 23 sep. 2026.