Hutagalung, Benny, author
1987
UI - Skripsi (Membership)
McLeod, Raymond, author
Prenhallindo , 1996
Buku Teks
McLeod, Raymond, author
Prenhallindo , 1996
Buku Teks
McLeod, Raymond, author
Bhuana Ilmu Populer, 1996
Buku Teks
Louise Moeis, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1980
UI - Skripsi (Membership)