Analisis Strategi Manajemen Sumber Daya Manusia dalam Peningkatan Kualitas Pelayanan Umrah pada PT. Mambaul Khairat Tour & Travel Kabupaten Ketapang. PRODUCTIVITY: Journal of Integrated Business, Management, and Accounting Research, [S. l.], v. 3, n. 1, p. 44–65, 2026. DOI: 10.54373/product.v3i1.161. Disponível em: https://ejournal.limm-pub.id/index.php/productivity/article/view/161. Acesso em: 19 jun. 2026.