Janiqulov, Q. K. “PARAMETRGA BOG‘LIQ DARAJALI FUNKSIYANING ASOSIY XOSSALARI VA QO’LLANILISHI”. FAN, TA’LIM VA AMALIYOT INTEGRATSIYASI 3, no. 4 (May 3, 2022): 336-344. Accessed April 28, 2025. https://journal.bilig.uz/isepsmj/article/view/761.