Bolton, S. Charles (Autumn 2003). "Jeffersonian Indian Removal and the Emergence of Arkansas Territory". The Arkansas Historical Quarterly. 62 (3): 253–271. doi:10.2307/40024265. JSTOR40024265.
jstor.org
Christian B. Keller, "Philanthropy betrayed: Thomas Jefferson, the Louisiana Purchase, and the origins of federal Indian removal policy." Proceedings of the American Philosophical Society 144.1 (2000): 39-66. online
Bolton, S. Charles (Autumn 2003). "Jeffersonian Indian Removal and the Emergence of Arkansas Territory". The Arkansas Historical Quarterly. 62 (3): 253–271. doi:10.2307/40024265. JSTOR40024265.