Nadelman, Lorraine, author
Lawrence Erlbaum, 2004
Buku Teks
Roberts, Edward B.
Harper & Row, Pub., 1964
Buku Teks
Gibson, John E., author
John Wiley & Sons, 1981
Buku Teks
edited by Abraham B. (Rami) Shani, Debra A. Noumair
Emerald, 2017
eBooks
Universitas Pelita Harapan. Fakultas Ekonomi, {s.a.}
Majalah, Jurnal, Buletin