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Gettman, Jon (2008). "Curriculum Vitae"(PDF). ibabuzz.com. Archived from the original(PDF) on September 15, 2013. Retrieved 2014-12-15.
Sturgis, Sue (2006-12-20). "Marijuana a top cash crop for the South". Institute for Southern Studies. Magazine of the Institute for Southern Studies. Archived from the original on 2011-09-27. Retrieved 2009-10-10.