SARASI, Vita. A Multi-Transportation-Modes Optimization with Time and Cost Constrains of The Postal Delivery Service in Indonesia. Jurnal Manajemen Teknologi, [S. l.], v. 2, n. 2, 2002. Disponível em: https://journal.sbm.itb.ac.id/index.php/mantek/article/view/26. Acesso em: 5 may. 2024.