STUDY OF EFFECTIVE FACTORS INFLUENCING THE IMMUNE SYSTEM, ENHANCING MARINE TRANSPORTATION. Singaporean Journal of Business Economics and Management, [S. l.], v. 1, n. (12), p. 85–91, 2013. Disponível em: https://singaporeanjbem.com/index.php/SJBEM/article/view/162. Acesso em: 16 jul. 2026.