2022. Online Internal Quality Assurance System Case Study of the Quality Assurance Agency of Muhammadiyah University of Sidoarjo: Sistem Penjamin Mutu Internal Online Studi Kasus Badan Penjamin Mutu Universitas Muhammadiyah Sidoarjo . Procedia of Engineering and Life Science. 2, 2 (June 2022). DOI:https://doi.org/10.21070/pels.v2i2.1196.