prepared by Business International Corporation
Business International Corporation,, 1991
Buku Teks
Kerzner, Harold R., author
John Wiley & Sons, 2014
Buku Teks
Dallmayr, Fred R. (Fred Reinhard), 1928-, author
Rowman & Littlefield Publishers, Inc., 2001
Buku Teks
Taufik Fajar Prasetyo, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2016
UI - Makalah dan Kertas Kerja
edited by Mak Yuen Teen
McGraw-Hill , 2006
Buku Teks