WULAN NINGRUM, Umi Dian Adhitya. The Effect of Loading and Unloading Speed on the Quality of Transportation Services. KnE Social Sciences, [S. l.], v. 5, n. 1, p. 284–293, 2021. DOI: 10.18502/kss.v5i1.8290. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/8290. Acesso em: 27 oct. 2025.