Wayland, Robert E
Customer connections: new strategies for growth/Robert E.Wayland & Paul M. Cole
Harvard Business School Press, 1997
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Martin Slama
Indonesian hadhramis and the hadhramaut: an old diaspora and its new connections
Jurnal Antropologi Indonesia, 2005
 Artikel Jurnal
Kuczmarski, Thomas D.
Managing new products: the power of Innovation
Prentice-Hall International, 1992
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Horne, Alistair
Return to power : a report on the new Germany
Praeger, 1956.
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Capra, Fritjof
The hidden connections
Harper Collins, 2002
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