Tolong jelaskan mengenai Pendirian dari Stefan Uroš IV Dušan dari Serbia

A short history of Yugoslavia from early times to 1966, Stephen Clissold, Henry Clifford Darby, Stephen Clissold, CUP Archive, 1968 ISBN 0-521-09531-X

Nationalism and territory: constructing group identity in Southeastern Europe, George W. White, Rowman & Littlefield, 2000 ISBN 0-8476-9809-2

Alexander Soloviev "Selected Monuments of Serbian Law from the 12th to 15th centuries" (1926)

Alexander Soloviev "Legislation of Stefan Dušan, emperor of Serbs and Greeks" (1928)

Alexander Soloviev "Dušan's Code in 1349 and 1354" (1929)

Alexander Soloviev "Greek charters of Serbian rulers" Soloviev and Makin {1936}

Harris, Jonathan, The End of Byzantium. New Haven and London: Yale University Press, 2010. ISBN 978-0-300-11786-8

Pirivatrić Srđan, Entering of Stefan Dušan into the Empire, Zbornik radova Vizantoloskog instituta 2007, Issue 44, Pages: 381-409,