New horizons world guide
edited by Gerald W. Whitted
Pan American World Airways, 1971
 Buku Referensi
New horizons world guide
edited by Gerald W. Whitted
Pan American World Airways, 1963
 Buku Referensi
Lambert, Brian W.
World-class selling: new sales competencies
American Society for Training & Development, 2009
 eBooks
Readings in world politics : a new era
by Steven L. Spiegel [and others]
Thomson Wadsworth, 2005
 Buku Teks
Price, Margaret M.
Emerging stock markets : a complete investment guide to new markets around the world / Margaret M. Price
Mc Graw-Hill, 1994
 Buku Teks