Yusup, Y., A. Sanusi, S. Trisnamansyah, and H. S. Muchtar. “The Effect of Tridharma Human Resource Management in Higher Education on Improving the Quality of Private Higher Education Lecturers in Clusters of Higher Schools in DKI Jakarta and West Java Regions”. Journal of Industrial Engineering & Management Research, Vol. 2, no. 4, July 2021, pp. 190 -8, doi:10.7777/jiemar.v2i4.177.