Pinontoan, T., V. Tirayoh, and I. G. Suwetja. “Penerapan Metode Activity Based Costing Dalam Perhitungan Tarif Kamar Pada Hotel Sapadia Kotamobagu”. Indonesian Journal of Economics Management and Accounting, vol. 3, no. 9, Sept. 2026, pp. 2952-63, https://jurnal.intekom.id/index.php/ijema/article/view/2427.