Jenaliyev, M.T. “Doctor of Physical and Mathematical Sciences, Professor M.I. Ramazanov Is 70 Years Old”. Bulletin of the Karaganda University. Mathematics Series, vol. 93, no. 1, Mar. 2019, pp. 162-3, http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/369.