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KASBIY TA’LIMDA “EHTIMOLLIKNI HISOBLASHDA KOMBINATORIKA FORMULALARIDAN FOYDALANISH” MAVZUSINING TA’LIM TEXNOLOGIYASINING MODELINI ISHLAB CHIQISH. journal. 2025;71(2):402-406. Accessed August 3, 2025. https://scientific-jl.com/obr/article/view/20770