Juraev, Ilhom, I.F Sharipova, and G.U Umarova. “Some Methods for Calculating Limits”. JOURNAL OF ADVANCES IN MATHEMATICS 10, no. 7 (May 29, 2015): 3628–3632. Accessed July 22, 2024. https://rajpub.com/index.php/jam/article/view/1768.