Afdan, Nikita Theresia. “Problem-Based Learning Worksheet for Grade 11 Biodiversity – Global Prestasi School”. Jurnal Spatial Wahana Komunikasi dan Informasi Geografi 24, no. 2 (March 24, 2025): 191–198. Accessed May 27, 2026. https://journal.unj.ac.id/unj/index.php/spatial/article/view/49294.