Kamenichny, I
Peace Publishers, [date of publication not identified]
Buku Teks
Cornwell, K., author
English Language Book, 1981
Buku Teks
McAdam, William H.
McGraw-Hill, 1951
Buku Teks
Holman, J.P. (Jack Philip), author
Mc-Graw-Hill , 1997
Buku Teks
Isachenko, V. P., author
MIR Publishers, 1977
Buku Teks