Xolpo’latova Mehriniso Xolpo’lat qizi. SOTSIOMETRIYA METODI.TURLARI VA UNGA QO’YILADIGAN ASOSIY TALABLAR . tadqiqot. 2024;48(2):146-149. Accessed November 5, 2024. https://scientific-jl.org/index.php/tad/article/view/629