| Lhotka, J. F. and Anderson, P. K. SURVEY OF MEDIEVAL IBERIAN
COINAGES. Reprint. N.P.: American Numismatic Association, 1965.
Marques, M. G. THE FIRST SYMPOSIUM ON PROBLEMS OF MEDIEVAL COINAGE IN THE IBERIAN AREA. Santarem: Instituto Politecnico de Santarem, 1984. Marques, M. G. and i Sabater, M. C. THE SECOND SYMPOSIUM ON PROBLEMS OF MEDIEVAL COINAGE IN THE IBERIAN AREA. Aviles: Instituto de Sintra, 1986. Marques, M. G. and Metcalf, D. M. THE THIRD SYMPOSIUM ON PROBLEMS OF MEDIEVAL COINAGE IN THE IBERIAN AREA. Santarem: Instituto de Sintra, 1988. Miles, George C. THE COINAGE OF THE UMAYYADS OF SPAIN. (Hispanic Numismatic Series, Monograph No. 1.) 2 vols. New York: American Numismatic Society, 1950. |