MITRA JAHANDIDEH, SHAHAB KHAEFI, AHANALI JAHANDIDEH, MASOUD KHAEFI, "Using the Root Proportion to Design an Oud", Department of Music, Faculty of Fine Art, Tehran University, Tehran, IRAN, http://www.wseas.us/e-library/conferences/2010/Iasi/AMTA/AMTA-05.pdf.{{citation}}: välislink kohas |work= (juhend)CS1 hooldus: mitu nime: autorite loend (link)