Mbunda, Agustino, Ibrahimu Nzima, and Aurelia Kimaro. “Teacher Professional Development: Study Leave Criteria As a Barrier to Qualification Upgrading for Public Primary School Teachers in Tanzania”. Papers in Education and Development 42, no. 2 (April 16, 2025). Accessed May 10, 2025. https://journals.udsm.ac.tz/index.php/ped/article/view/8542.