Stoner, James A.F. (Arthur Finch), author
Intermedia, 1986
Buku Teks
Siregar, Doli D., author
Gramedia, 2004
Buku Teks
penyunting, B.N. Marbun
Pustaka Binaman Pressindo, 1992
Buku Teks
Plunkett, Warren R.
Kent Publishing, 1983
Buku Teks
Weihrich, Heinz, author
McGraw-Hill , 1985
Buku Teks