Ringo IKS, Aminatun T, Wilujeng I, Nurohman S. Electronic Worksheet-Based Problem Based-Learning (PBL) Toward Problem-Solving in Science Education: Need Analysis. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2023 Jan. 31 [cited 2024 May 2];9(1):299-304. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/2579