Manullang, M., author
Gajah Mada University Press, 2002
Buku Teks
Waworuntu, Tony, author
Gramedia Pustaka Utama, 1995
Buku Teks
Manullang, M., author
Ghalia Indonesia, 1977
Buku Teks
Heidjrachman Ranupandojo, author
Yogyakarta: BPFE, c1987
Buku Teks
Stoner, James A.F. (Arthur Finch), author
Erlangga, 1986
Buku Teks