SIRTAUTAS, Vytautas. Stasys Šalkauskis – An Initiator of the Methodology of Scientific Work. Acta Paedagogica Vilnensia, [S. l.], v. 4, p. 60–66, 1997. DOI: 10.15388/ActPaed.1997.04.9408. Disponível em: https://www.journals.vu.lt/acta-paedagogica-vilnensia/article/view/9408.. Acesso em: 5 may. 2024.