NEEDS ANALYSIS FOR DEVELOPING A PROBLEM-BASED LEARNING-BASED ELECTRONIC STUDENT WORKSHEET (E-LKPD) TO ENHANCE STUDENTS’ CONCEPTUAL UNDERSTANDING AND SCIENCE PROCESS SKILLS ON TEMPERATURE AND HEATHEET (E-LKPD) TO IMPROVE STUDENT’ CONCEPTUAL UNDERSTANDING AND SCIENCE PROCESS SKILL ON TEMPERATURE AND HEAT. PoPE: Pillar of Physics Education [Internet]. 2026 Jul. 30 [cited 2026 Aug. 5];19(1):197-206. Available from: http://pope.ppj.unp.ac.id/index.php/pope/article/view/32