Energy Management Analysis at Hajj General Hospital Medan. Inovasi, [S. l.], v. 23, n. 1, 2026. DOI: 10.33626/x3m1g667. Disponível em: https://jurnal.sumutprov.go.id/index.php/inovasi/article/view/1041. Acesso em: 29 jun. 2026.