Gulara Aimbetova Nurymbetovna, Akhunov Farrukh Rustemovich, and Li Andrey Evgenievich. “Features of Developing a Crm System for Medical Centers Using Mysql, Php and Javascript Technologies”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, Vol. 2, no. 1, Feb. 2021, pp. 18-22, http://cajmtcs.centralasianstudies.org/index.php/CAJMTCS/article/view/51.