A. BERDIYEVA; I. HALLYYEV. POSSIBILITIES OF OBTAINING SIO₂ AND AL₂O₃ FROM SAND COMPOSITION. ОБРАЗОВАНИЕ И НАУКА В XXI ВЕКЕ, [S. l.], n. 61-1 (том 1), 2025. Disponível em: https://mpcareer-google.ru/index.php/journal/article/view/1640.. Acesso em: 5 jul. 2026.