Srpsko Carstvo: razlika između inačica

*John V.A. Fine, Jr., ''The Late Medieval Balkans'', Ann Arbor, 1987.

*George C. Soulis, ''The Serbs and Byzantium during the reign of Emperor Stephen Dusan (1331–1355) and his successors'', Athens, 1995. ISBN 0-88402-137-8