M. B. Ajieva, A. O. Babanazarova, and D. Q. Sultonov, “METHODOLOGY OF ORGANIZING EXTRA-CLASS WORK, OLYMPIADS AND CHEMISTRY NIGHTS IN THE CHEMISTRY COURSE AT SCHOOL”, SS, no. 3-3, pp. 68–70, May 2026, Accessed: Aug. 09, 2026. Available: https://journal.ndpi.uz/ss/article/view/2026-3-3-023