Handayani, Ucik Fitri, and Lailatul Anggraini. “Students’ Errors in Solving Linear Program Problems According to Newman’s Theory in Terms of Gender”. Journal Focus Action of Research Mathematic (Factor M) 7, no. 1 (June 1, 2024): 139–155. Accessed August 18, 2026. https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/factorm/article/view/env7n1_p139_155.