G‘afforov Husayn Aliyar o‘g‘li, Matematika va uni o‘qitish metodikasi kafedrasi o‘qituvchisi Jo‘rayev Ilhom Ro‘ziboy o‘g‘li, 60110600- Matematika va informatika ta’lim yo‘nalishi 3-bosqich talabasi. Norqobilova Feruza Erkin qizi, 60110600- Matematika va. 2024. “IXTIYORIY NATURAL SONNING NBS (NATURAL BO‘LUVCHILAR SONI) TOQ YOKI JUFTLIGI”. SCIENCE AND INNOVATION IDEAS IN MODERN EDUCATION 2 (5):144-46. http://woconferences.com/index.php/SIIME/article/view/1541.