CESSY YULIA NOFIA. Preparation of Standard Operating Procedures (SOPs) for Procurement of Goods, Especially Shopping for Consumables of Practical Materials at SMK Negeri 6 Batam. Social Sciences Insights Journal, [S. l.], v. 1, n. 2, p. 27–31, 2023. DOI: 10.60036/ssij3. Disponível em: https://journal.midpublisher.com/index.php/ssij/article/view/5. Acesso em: 15 mar. 2025.