RIZKINA, Khalida. The Role of Purchasing in the Effectiveness of Procurement of Goods in the Food & Beverage Department at the Grand Mercure Hotel Medan Angkasa. Jurnal Online Mahasiswa, [S. l.], v. 1, n. 2, 2023. Disponível em: http://jom.poltekparmedan.ac.id/index.php/jomph/article/view/50. Acesso em: 18 may. 2024.