Uzoqova Zarifa Umrzoq qizi, Elomonova Saidabonu Sherali qizi, Rajabov Shahriyor Taxir o’g’li, and Nurmetov Abrorbek Xusniddin o’g’li. “KOMBINATORIKA VA UNING HAYOTGA TATBIQI”. ОБРАЗОВАНИЕ НАУКА И ИННОВАЦИОННЫЕ ИДЕИ В МИРЕ, vol. 20, no. 4, Apr. 2023, pp. 15-18, https://newjournal.org/01/article/view/5764.