RAHIMOV M.YU. STUDY OF OBSERVATION CHANNELS IN EXPERIMENTAL EXPERIMENTS. Research Focus International Scientific Journal, [S. l.], v. 4, n. 5, p. 258–263, 2025. DOI: 10.66073/10.66073. Disponível em: https://refocus.uz/index.php/rf/article/view/1656. Acesso em: 14 jun. 2026.