Ne`matova Shohsanam Nodirbek qizi, and Obidjonova Diyoraxon Qudratjon qizi. 2025. “IKKINCHI TARTIBLI XUSUSIY HOSILALI DIFFERENTSIAL TENGLAMALAR BILAN TAVSIFLANADIGAN OPTIMAL BOSHQARUV MASALALARINI SONLI YECHISH. ”. TADQIQOTLAR 63 (1): 208-17. https://scientific-jl.com/tad/article/view/16477.