Purnama, S. 2022. Analisis Deskriptif Kualitas Pelayanan Bimbingan Belajar Ganesha Operation Tahun Ajar 2020. Economics Professional in Action (E-Profit). 2, 01 (Aug. 2022), 54–58. DOI:https://doi.org/10.37278/eprofit.v2i01.507.