QUROMBOYEV, Hamdambek. NOSTANDART OLIMPIADA MASALALARINI YECHISH USULLARI HAQIDA. Academic research in modern science, [S. l.], v. 1, n. 13, p. 231–233, 2022. DOI: 10.5281/zenodo.7092405. Disponível em: https://econferences.ru/index.php/arims/article/view/383. Acesso em: 1 sep. 2026.