Mukhamadiev, F. G., and M. S. Nosirova. “SOME RETRACTIONS OF N-FOLD SYMMETRIC PRODUCT OF THE SPACE X”. «ACTA NUUz» 2, no. 2.2 (November 26, 2025): 81–85. Accessed December 5, 2025. http://journals.nuu.uz/index.php/actanuuz/article/view/9930.