Semchenkova, S.A., Kruglikovskaya Т.F., Mulkibayeva, S.S. і Tussupova, N.M. 2016. Status indicators of the mucosal epithelial cells of the lips and cheeks in older people, lived big city and village. ҚазҰУ Хабаршысы. Биология сериясы. 63, 1 (Бер 2016), 145–149.