Ashton, Robert, author
Gramedia Pustaka Utama, 2006
Buku Teks
Heider, John, author
PPM, 2006
Buku Teks
Ashton, Robert, author
Gramedia Pustaka Utama, 2006
Buku Teks
M. Fuad... [et.al.]
Gramedia Pustaka Utama, 2000
Buku Teks
Yurda Jalil, author
Universitas Indonesia, 2003
UI - Tesis (Membership)