Pilyar, Yuri
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks
Gipson, James H.
McGraw-Hill Book, 1984
Buku Teks
Brolin, Brent C., author
W.W. Norton, 2002
Buku Teks
Sorenson, Ritch, author
Prentice-Hall, 2001
Buku Referensi
Booher, Diana
Prentice-Hall, 1991
Buku Teks