TRAKAS, Gediminas. Problems of the Equivalence of the Parallel Test Forms. Acta Paedagogica Vilnensia, [S. l.], v. 8, p. 138–151, 2001. DOI: 10.15388/ActPaed.2001.08.9522. Disponível em: https://test.zurnalai.vu.lt/acta-paedagogica-vilnensia/article/view/9522. Acesso em: 25 oct. 2025.