Edited by John A. Lent
The Iowa State University Press, 1971
Buku Teks
Ida Ayu Kadek Trisnanty
2011
UI - Laporan Penelitian
Nurhanna Fujiko Kamaruddin
2003
UI - Tesis (Membership)
Siregar-Situmeang, Djodjor
1989
UI - Skripsi (Membership)
Harya Pratama
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi (Membership)