Jumanov Fazliddin Farhod o’g’li, Ahmatov Abbos Husan o’g’li, Sodiqov Eshmirod, and Roʻzimurodov Javohir. “ELLIPS VA UNING KANONIK TENGLAMALARI”. Journal of New Century Innovations, vol. 27, no. 6, Apr. 2023, pp. 155-9, https://newjournal.org/new/article/view/5856.