GUNAWAN SAGALA; RUDI ANTON SAMOSIR; PARAPAT GULTOM. TRANSPORTATION METHODS TO OPTIMIZE SHIPPING COSTS FOR RESEARCH SOIL SAMPLES FOR STUDENTS OF THE FACULTY OF AGRICULTURE, INDONESIAN METHODIST UNIVERSITY. INTERNATIONAL JOURNAL OF ADVANCED ACADEMIC , [S. l.], v. 1, n. 02, p. 55–59, 2024. DOI: 10.3951.vol1iss2no06pp55. Disponível em: https://ejournal.pustakakaryamandiri.com/ojs/index.php/ijaa/article/view/54. Acesso em: 23 jul. 2025.