KNOWLES, Donald W.; HENLY-LEWIS, Jack. Attitudes of Students in a "Student-Centred" High School. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 6, n. 1, 1972. Disponível em: https://jhistsex.org/index.php/rcc/article/view/60834. Acesso em: 27 dec. 2025.