Zuberi Hussein , Mavumba, Evaristo Andreas Mtitu, and Mary Ogondiek. “Implementation of Learner-Centred Teaching and Learning Approaches in Advanced Mathematics in Secondary Schools in Tanzania: Achievements and Challenges”. JOURNAL OF ISSUES AND PRACTICE IN EDUCATION 11, no. 2 (December 25, 2020). Accessed June 23, 2025. https://journals.out.ac.tz/index.php/jipe/article/view/847.