KOMBINATORIKA PREDMETI VA PAYDO BO‘LISH TARIXI VA 7-SINF MATEMATIKA DARSLIKLARIDA KOMBINATORIKA MASALALARINI HAYOTGA BOG‘LAB O‘QITISH. ICAMES [Internet]. 2024 Dec. 16 [cited 2026 Jun. 17];1(8):25-32. Available from: https://universalconference.us/index.php/icames/article/view/3403