Mashun, Mashun, Mustaji Mustaji, Andi Mariono, and Muhamad Suhardi. “Management Model Development of Instructional Materials For Professional Competence Improvement Of Teachers In Indonesia”. Eduvest - Journal of Universal Studies 2, no. 10 (October 20, 2022): 2091–2104. Accessed June 15, 2025. http://eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/622.