KOMBINATORIKA PREDMETI VA PAYDO BO‘LISH TARIXI VA 7-SINF MATEMATIKA DARSLIKLARIDA KOMBINATORIKA MASALALARINI HAYOTGA BOG‘LAB O‘QITISH. ICAMES. 2024;1(8):25-32. Accessed June 17, 2026. https://universalconference.us/index.php/icames/article/view/3403