Michurina, N.N., author
Kazanskogo universiteta, 1972
Buku Teks
Shakirova, Liya Zakirovna, author
Prosvesyenie, 1978.
Buku Teks
Krylova, Ol`ga Alekseyevna, author
Russkij Yazyk, 1976
Buku Teks
Superanskaya, Aleksandra Vasilevna, author
Nauka, 1968
Buku Teks
Vishnyakova, Ol`ga Viktorovna, author
Vyshaya Shkola, 1973
Buku Referensi