“BIR O‘LCHAMLI PANJARADA UCH O‘LCHAMLI QO‘ZG‘ALISHGA EGA FRIDRIXS MODELINING XOS QIYMATLARI”. Yangi O’zbekiston taraqqiyotida tadqiqotlarni o’rni va rivojlanish omillari 15, no. 1 (January 10, 2025): 95–97. Accessed May 11, 2026. https://pedagoglar.org/04/article/view/6874.