Shenkel, William M., author
McGraw-Hill, 1980
Buku Teks
Shenkel, William M., author
Business Publications , 1980
Buku Teks
editor, Joseph L. Pagliari
Irwin, 1996
Buku Referensi
Ario Pramadhi, author
2001
UI - Tesis (Membership)
Mosalina Dewi, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1996
UI - Tesis (Membership)