Fahima Mirgalievna Khisamova,

Kazan Federal University,

18 Kremlyovskaya Str., Kazan, 420008, Russia,

fanuzanurieva@yandex.ru.

Fanuza Shakurovna Nurieva,

Kazan Federal University,

18 Kremlyovskaya Str., Kazan, 420008, Russia,

fanuzanurieva@yandex.ru.

 

Аrticle