VAN DER GEN, A. . International Science Study for Undergraduates
Needs, Values, Opportunities, Problems, Models: Needs, Values, Opportunities, Problems, Models. Frontiers: The Interdisciplinary Journal of Study Abroad, [S. l.], v. 3, n. 1, p. 210–217, 1997. DOI: 10.36366/frontiers.v3i1.55. Disponível em: https://frontiersjournal.org/index.php/Frontiers/article/view/55. Acesso em: 2 may. 2024.