HARTIANA, W. O.; ANDRIYANI, A. Improving 8th-grade students’ problem-solving skills and self-efficacy in probability using discovery learning. International Journal on Education Insight, [S. l.], v. 3, n. 2, p. 101–112, 2022. DOI: 10.12928/ijei.v3i2.6337. Disponível em: http://journal2.uad.ac.id/index.php/ijei/article/view/6337. Acesso em: 18 feb. 2026.