Mardiah, Ainal, M. Ikhsan, and Marwan Marwan. “Improving Students’ Mathematical Reasoning Ability Through Problem Posing Approaches at SMPN 19 Banda Aceh”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 44, no. 2 (March 5, 2019): 26–36. Accessed April 29, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/9790.