Supardi, D., mupaat and Suranti, S. 2021. PENERAPAN KUALITAS SISTEM APLIKASI E-LEARNING HWI GO BERDASARKAN ASPEK PRODUCT OPERATION Mc CALL PADA PT HEALTH WEALTH INTERNATIONAL . Jurnal Rekayasa Teknologi Nusa Putra. 5, 1 (May 2021), 49-60. DOI:https://doi.org/10.52005/rekayasa.v5i1.100.