Winarsih P, Desnita. Need Analysis to Develop Electronic Student Worksheet Based on Problem Based Learning to Improve Students’ Problem-Solving Skills. jipt [Internet]. 2025 Jun. 30 [cited 2025 Jul. 1];3(1):106-19. Available from: https://jipt.ppj.unp.ac.id/index.php/jipt/article/view/86