Laura Magdalena Tampubolon, et al. “COST-VOLUME-PROFIT ANALYSIS AS A TOOL FOR EVALUATING THE ACHIEVEMENT OF PROFIT ON GULAKU PRODUCT IN MINI MARKET PRIMER KOPERASI MARKAS BESAR ANGKATAN UDARA BEFORE AND DURING COVID-19 PANDEMIC”. Fundamental Management Journal, vol. 7, no. 2, Oct. 2022, pp. 64-83, doi:10.33541/fjm.v7i2.4276.