Finkel, C. Osman's Dream: The Story of the Ottoman Empire, 1300—1923 p.3 [3]
Rosow, Stephen J. "Nature, Need, and the Human World; "Commercial Society" and the Construction of the World Economy." The Global Economy as Political Space. p. 17. Link to Google Books
Cell, John W. " Europe and the World in an Expanding World Economy, 1700—1850." Asia in World History: Essays. p. 448 Link to Google Books
Cell, John W. " Europe and the World in an Expanding World Economy, 1700—1850." Asia in World History: Essays. p. 445 Link to google books
Inikori, J.E. "Africa in World History: the Export Slave Trade From Africa and the Emergence of the Atlantic Economic Order." General History of Africa V; Africa from the sixteenth to eighteenth century. p.92. Link to Google Books
Lee, Silkroad Foundation, Adela C.Y. "Pax Mongolica". www.silk-road.com. Archived from the original on 1999-05-05. Retrieved 2010-06-05.{{cite web}}: CS1 maint: multiple names: authors list (link)
Lee, Silkroad Foundation, Adela C.Y. "Pax Mongolica". www.silk-road.com. Archived from the original on 1999-05-05. Retrieved 2010-06-05.{{cite web}}: CS1 maint: multiple names: authors list (link)