GEGHAMYAN, V.; TARJUMANYAN, S. Psychological Indicators Ensuring Efficiency of the Chess Player’s Competitive Activity. Physical Education Theory and Methodology, [S. l.], v. 23, n. 1, p. 110–115, 2023. DOI: 10.17309/tmfv.2023.1.16. Disponível em: https://tmfv.com.ua/journal/article/view/1701. Acesso em: 15 jul. 2026.