Orumbayeva, N.T. “70th Anniversary of Doctor of Technical Sciences, Professor, President of the National Engineering Academy of the Republic of Kazakhstan, President of the Turkic World Mathematical Society (TWMS), Academician of the NAS RK Bakytzhan Zhumagulov”. Bulletin of the Karaganda University. Mathematics Series, vol. 112, no. 4, Dec. 2023, pp. 196-7, https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/618.