Aulira I, Sari MP. DEVELOPMENT OF SHARED-TYPE INTEGRATED SCIENCE E-MODULE BASED ON PROBLEM-BASED LEARNING ON THE TOPIC OF ENVIRONMENTAL POLLUTION. universe [Internet]. 2025 May 20 [cited 2026 May 26];5(2):204-12. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/572