by Eugene W. Nester ... [et. al.]
Holt, Rinehart and Winston, 1973
Buku Teks
Dixon, Bernard
W.H. Freeman 1994, 1994
Buku Teks
Linton, Alan H., author
John Wiley & Sons, 1982
Buku Teks
Jatnita Parama Tjita, author
UI - Tesis Membership
Nies Andekayani Enaldy, author
Program Pascasarjana Universitas Indonesia, 1997
UI - Tesis Membership