Hasbullah, M. A., N. B. Selirowangi, M. S. Pradana, B. Khulel, and M. Hudi. “Quality and Affordable Education through Quality Management Systems in Higher Education ”. EDUTEC : Journal of Education And Technology, Vol. 3, no. 2, May 2020, pp. 151-60, doi:10.29062/edu.v3i2.52.