Farah Qalbia, and Shinta Amelia. 2022. “Analisis Penerapan Metode Activity Based Costing (ABC) Dalam Menentukan Tarif Sewa Kamar Kos Homestay Grace II”. OPTIMAL Jurnal Ekonomi Dan Manajemen 2 (4):385-401. https://doi.org/10.55606/optimal.v2i4.4463.