Munawarah, Nurul, and Edy Surya. “An Analysis of the Difficulties in Learning Mathematics By Using Scientific Approach at SMA Negeri 3 Manyak Payed”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 33, no. 3 (May 27, 2017): 94–104. Accessed April 29, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7439.