BERKOV, V. The Concepts of Object and Subject of Study in the Light of the Concept of Activity-Based Methodology. WISDOM , [S. l.], v. 4, n. 1, p. 18-25, 2015. Disponível em: https://wisdom.miopap.aspu.am/index.php/wisdom/article/view/111. Acesso em: 3 may. 2026.