Japakova Muqaddos Jalalatdin qizi, and Djumanazarova Zulfiya Kojabaevna. “DAVRIY JADVALNING ASOSIY GURUH ELEMENTLARI”.
Scientific Impulse
, vol. 1, no. 11, July 2023, pp. 772-4, https://nauchniyimpuls.ru/index.php/ni/article/view/10997.