Saodat Pardaboyeva Ilxom qizi. “MAKTAB МАТЕМАТИКА КURSIDA KОMBINATORIKA MASALALARINI YECHISHNI O’RGATISH METODIKASI”. JOURNAL OF NEW CENTURY INNOVATIONS, vol. 80, no. 1, July 2025, pp. 180-5, https://scientific-jl.com/new/article/view/24615.