Nybakken, James W. (James Willard), author
Gramedia Pustaka Utama, 1992
Buku Teks
IRL Press , 1985
Buku Teks
St Clair, Caroline, author
Jones & Bartlett Learning, 2015
Buku Teks
Crawford, Daniel J., author
John Wiley & Sons, 1990
Buku Teks
Silverthorn, Dee Unglaub, author
Pearson, 2016
Buku Teks