Charnley, Mitchell V., author
Holt, Rinehart and Wisnton, 1965
Buku Teks
Yusuf Hadli, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Mansyur Semma, author
Universitas Indonesia, 1998
UI - Tesis (Membership)
MacDougall, Curtis D., author
Macmilan Co., 1972
Buku Teks
Ahuja, B. N., author
Surjeet Publications, 1990
Buku Teks