Suwarjo, Dewi Mutiarawati, Samadi Samadi, and Muzani Muzani. “Application of Problem-Based Learning Model to Improve Geographic Literacy and Learning Outcomes of High School Students”. Advances In Social Humanities Research 4, no. 11 (November 7, 2026): 1808–1819. Accessed November 8, 2026. https://adshr.org/index.php/vo/article/view/760.