CHOTIMA, H.; RIYASNI, S.; ASRIZAL, A.; STIVANI SUHERMAN, D. Need Analysis to Develop E-Student Worksheet Integrated PBL Model and Virtual Laboratory to Improve Students’ Problem-Solving Skills. Journal of Innovative Physics Teaching, [S. l.], v. 4, n. 1, p. 138–150, 2026. DOI: 10.24036/jipt/vol4-iss1/136. Disponível em: https://jipt.ppj.unp.ac.id/index.php/jipt/article/view/136. Acesso em: 23 jun. 2026.