ТАМОШЮНАС, Леонас. The Book and Problem Method in Studying Social Sciences within the Party Education System. Knygotyra, [S. l.], v. 18, n. 11-2, p. 5–15, 1985. Disponível em: https://www.journals.vu.lt/knygotyra/article/view/34361. Acesso em: 5 dec. 2025.