KREGŽDĖ, S. The diagnosis and formation of professional fitness from the point of view of the instrumental theory of purposefulness. Psichologija, [S. l.], v. 8, p. 3–10, 1988. DOI: 10.15388/Psichol.1988.8.9087. Disponível em: https://journals.vu.lt./psichologija/article/view/9087. Acesso em: 27 apr. 2025.