Purba, Angel Theresia, Mulia Utami, Rahma Safitri Lubis, and Pesta Gultom. “Analysis of the Implementation of Total Productive Maintenance (TPM) at Madam Souvenir”. Economic: Journal Economic and Business 4, no. 1 (January 31, 2025): 20–26. Accessed July 27, 2025. https://jurnal.larisma.or.id/index.php/EJEB/article/view/871.