• http://www.boliviabella.com/business-etiquette.html

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• http://guide.culturecrossing.net/basics_business_student_details.php?Id=22&CID=26

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• http://www.commisceo-global.com/country-guides/bolivia-guide

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• http://www.oncallinternational.com/blog/business-etiquette-around-world-united-arab-emirates/