Purba, Victor, author
UI-Press, 2004
Buku Teks
Sitompul, Asril, author
Citra Aditya Bakti, 2004
Buku Teks
A. Fuad Rahmany, author
2007
Buku Teks
Sitompul, Asril, author
Citra Aditya Bakti, 2004
Buku Teks
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1992
UI - Skripsi (Membership)