Mandl, F., author
John Wiley & Sons, 1971
Buku Teks
Yemima, Ben-Menahem, editor
Springer, 2012
eBooks
Honerkamp, Josef, author
Springer, 2012
eBooks
Schiffman, Susan S., author
Academic Press, 1981
Buku Teks
Harryadin Mahardika, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2003
UI - Skripsi (Membership)