LUBIS, Zainul Arifin; HASIBUAN, Robinasari; DAULAY, Hamnasari. Increasing Students’ Learning Motivation Through Problem Based Learning at SD Negeri 0405 Hutaraja Lamo. Indonesian Journal of Education and Social Humanities, [S. l.], v. 1, n. 3, p. 79–90, 2024. DOI: 10.62945/ijesh.v1i3.392. Disponível em: https://journal.mgedukasia.or.id/index.php/ijesh/article/view/392. Acesso em: 7 dec. 2025.