Bozorova Nigina Uchqunovna and Yamgirova Gulshirin Tirkashovna (2023) “YASASHGA DOIR MASALALARDA KOMBINATORIKA QOIDALARINING QO‘LLANILISHI”, Ustozlar uchun, 45(3), pp. 127–134. Available at: http://pedagoglar.uz/index.php/01/article/view/5077 (Accessed: 19 September 2024).