Spindler, Karlheinz
Marcel Dekker, 1994
Buku Teks
Hillman, Abraham P.
PW Publishing Company, 1994
Buku Teks
Ehrlich, Gertrude, author
PWS-Kentt Publishing, 1991
Buku Teks
Gill, Authur
Prentice-Hall, 1976
Buku Teks
Hani Qonitah, author
1996
UI - Skripsi (Membership)