WILLIAM ADHINATA; SAEPUDIN, P.; MULJAWAN, R. Analisis Cost of Food Sales di The Jayakarta Yogyakarta Hotel & Spa. NHI HOSPITALITY INTERNATIONAL JOURNAL, Indonesia, v. 3, n. 2, p. 71–80, 2025. DOI: 10.34013/nhij.v3i2.2721. Disponível em: https://journal.poltekpar-nhi.ac.id/index.php/nhij/article/view/2721. Acesso em: 16 oct. 2026.