Nurdin, Deden Muhamad. “Efforts to Improve Student Learning Outcomes With Performance Assessment on the Concept of Environmental Pollution”. International Journal of Learning Media on Natural Science (IJLENS) 2, no. 1 (February 28, 2025): 8–14. Accessed April 18, 2026. https://www.journal.genintelektual.id/index.php/ijlens/article/view/104.