“MATERIAL BORLIQNING HOSIL BO’LISHDA XIGGS BOZONINING O’RNI”. Qo‘qon DPI. Ilmiy xabarlar jurnali 8, no. 4 (June 1, 2026): 150–153. Accessed October 26, 2026. https://journals-kokandsu.uz/index.php/kspi/article/view/1162.