Sarabjot Singh, author
Management, Faculty of Economics, University of Indonesia and Philip Kotler Center, 2013
Artikel Jurnal
Damisch, Hubert
MIT Press, 2000
Buku Teks
Ruzaimi Mat Rani, author
Words & Visuals Press Pte Ltd,
Buku Referensi
Elkins, James, author
Cornell University Press, 1994
Buku Teks
edited Scott G. Mcnall
Little, Brown, 1968
Buku Teks