Kamenichny, I
Peace Publishers, [date of publication not identified]
Buku Teks
Holman, Jack Philip, author
Mc-Graw-Hill , 1997
Buku Teks
Cornwell, K., author
English Language Book, 1981
Buku Teks
Isachenko, V. P., author
MIR Publishers, 1977
Buku Teks
Eckert, E.R.G., author
Tata McGraw-Hill, 1979
Buku Teks