CHRISTOPHER F. BUENO; FLORIDA U. URSULOM; ELEANOR R. BELIZAR. Status of the Transportation Business in Ilocos Sur. The Vector: International Journal of Emerging Science, Technology and Management (IJESTM), [S. l.], v. 11, n. 1, 2002. DOI: 10.69566/ijestm.v11i1.159. Disponível em: https://vector.unp.edu.ph/index.php/1/article/view/159. Acesso em: 16 sep. 2024.