NURHIDAYANTI, S.; NURNUGROHO, B. A. Developing PBL-based worksheet to foster self-confidence and problem-solving skills in learning transformation geometry. International Journal on Education Insight, [S. l.], v. 7, n. 1, p. 131–142, 2026. DOI: 10.12928/ijei.v7i1.15532. Disponível em: http://journal2.uad.ac.id/index.php/ijei/article/view/15532. Acesso em: 10 mar. 2026.