Kadasah، N. S.، و Child، J. (2006). The Foreign Direct Investment Decision-Making Process: The Influence of Psychic Distance : Evidence from Foreign Investors and Experts in Saudi Arabia (رسالة دكتوراه غير منشورة). University of Birmingham، برمنغهام. مسترجع من http://search.mandumah.com/Record/600016
Kadasah، Nasser Saeed، و John Child. "The Foreign Direct Investment Decision-Making Process: The Influence of Psychic Distance : Evidence From Foreign Investors and Experts in Saudi Arabia" رسالة دكتوراه. University of Birmingham، برمنغهام، 2006. مسترجع من http://search.mandumah.com/Record/600016