Γκαφάνης Γ. Η θεωρία της εργασίας αξίας του Karl Marx. The Greek Review of Social Research, [S. l.], v. 65, p. 92–109, 1987. DOI: 10.12681/grsr.651. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/ekke/article/view/7243. Acesso em: 22 dec. 2024.