NORKUS , V. The importance of introducing different painting materials and techniques in the 5th-6th forms of secondary schools. Psichologija, [S. l.], v. 12, p. 37–52, 1972. DOI: 10.15388/Psichol.1972.12.9265. Disponível em: https://test.zurnalai.vu.lt/psichologija/article/view/9265. Acesso em: 26 oct. 2025.