Daneshname-i Farhang va Adab-i Iran Jeld-i Nouzda’humAwal: harfe-i ZAD [دانشنامه فرهنگ وادب ایران، جلد نوزدهم ، حرف "ض"]: Encyclopedia of Culture and Civility of Iran; Volume XIX, letter “ZAD”. 
Publisher: Author, Ahmad Shahvary
Published: 2010