PENGARUH TOTAL QUALITY MANAGEMENT DAN SUPPLY CHAIN MANAGEMENT TERHADAP KINERJA OPERASIONAL UMKM GULA MERAH DI KABUPATEN PURWOREJO. Volatilitas Jurnal Manajemen dan Bisnis, [S. l.], v. 7, n. 2, 2025. DOI: 10.37729/volatilitas.v7i2.6223. Disponível em: https://jurnal.umpwr.ac.id/index.php/volatilitas/article/view/6223. Acesso em: 1 sep. 2026.