Hakimova Marjona Iskandarzoda and Dots. Normo`minov Sherzod To`ychiyevich (2024) “MENTAL ARITHMETIC IN ELEMENTARY SCHOOLS”, Spectrum Journal of Innovation, Reforms and Development, 24, pp. 94–96. Available at: https://sjird.journalspark.org/index.php/sjird/article/view/962 (Accessed: 5 December 2024).