Bozorova Nigina Uchqunovna, Yamgirova Gulshirin Tirkashovna. YASASHGA DOIR MASALALARDA KOMBINATORIKA QOIDALARINING QO‘LLANILISHI. tadqiqotlar [Internet]. 2023 Jun. 9 [cited 2024 Sep. 19];45(3):127-34. Available from: http://pedagoglar.uz/index.php/01/article/view/5077