BOBANTO, Ranty; WANGARRY, Andreas Randy; SANTIE, Johannes Kristoffel. Analisis Fungsi Dan Tanggung Jawab Purchasing Dalam Meminimalkan Biaya Operasional Hotel Di Hotel Grand Luley Manado. EKOMA : Jurnal Ekonomi, Manajemen, Akuntansi, [S. l.], v. 5, n. 6, p. 9291–9301, 2026. DOI: 10.56799/ekoma.v5i6.17698. Disponível em: https://al-haramjournal.co.id/EKOMA/article/view/17698. Acesso em: 6 sep. 2026.