SHUKURJON TO’XTASINOVICH, Akramov. VALENTLIK – NODETERMINANTLIK. Advances in Science and Education, [S. l.], v. 1, n. 03, p. 103–105, 2025. DOI: 10.70728/edu.v01.i03.038. Disponível em: https://science-education.uz/index.php/journal/article/view/70. Acesso em: 26 jun. 2026.