GUILLEN, Javier Carreon; LIRIOS, Cruz Garcia. Specification of a Model for the Study of Vocational Training and Job. International Journal of Advances in Social Science and Humanities, [S. l.], 2018. Disponível em: https://www.ijassh.com/index.php/IJASSH/article/view/58. Acesso em: 18 may. 2024.