Sunarti, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1986
UI - Skripsi (Membership)
Matz, Adolph, author
Erlangga, 1993
Buku Teks
Mulyadi, author
STIE-YKPN, 1991
Buku Teks
Matz, Adolph, author
Gelora Aksara Pratama, 1998
Buku Teks
Mulyadi, author
BP-FE, 1986
Buku Teks