Abdul Halim Hamid, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1994
UI - Tesis (Membership)
Root, Jane, author
Comedia, 1986
Buku Teks
Kristek, Vladimir, author
John Wiley & Sons, 1979
Buku Teks
Hurtig Publishers, 1984
Buku Teks
Diana Wangsa H., author
Fakultas Teknik Universitas Indonesia, 2013
UI - Skripsi (Membership)