Arifudin, O., Trisnamansyah, S. ., Hanafiah, & Sauri, R. S. . (2022). Implementation Of Internal Quality Assurance System In Order To Improve The Quality Of Polytechnical Research. International Journal of Social Science Education Communication and Economics (SINOMICS JOURNAL), 1(3), 297–306. https://doi.org/10.54443/sj.v1i3.39