Maysaroh, N. .; Wasesa, T.; Zuhro, D.; Sutini, S.; Rachmawati, A.; Daeng GS, A. ACTIVITY BASED COSTING METHOD IN DETERMINING ROOM SERVICE COSTS. (Study Kasus at Hotel Wilis Indah Abadi In Nganjuk). jomss 2026, 4, 1423-1439.