Mashun, M., M. Mustaji, A. Mariono, and . M. Suhardi. “Management Model Development of Instructional Materials For Professional Competence Improvement Of Teachers In Indonesia”. Eduvest - Journal of Universal Studies, vol. 2, no. 10, Oct. 2022, pp. 2091-04, doi:10.59188/eduvest.v2i10.622.