Lanier, Susan, author
Regents/Prentice Hall, 1992
Buku Teks
Hearing, Sylvia, 1954-
Regents/Prentice Hall, 1994
Buku Teks
Adi Sofyan, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1982
UI - Skripsi (Membership)
Astaria Widiati, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2002
UI - Skripsi (Membership)
by Donald R. Davis ... [et al.]
Dryden Press, 1989
Buku Teks