Nurrijal N, Kudus K, Abdullah G, Handayani S. Analysis of Marine Wealth and Environmental Awareness Teaching Through Problem Base Learning (PBL) Model in Elementary Grades . pedagogika [Internet]. 2026Apr.30 [cited 2026Aug.8];17(1):174-8. Available from: https://www.ejournal-fip-ung.ac.id/ojs/index.php/pedagogika/article/view/4078