*{{eneng iconoznaka}} {{cite web|last=Kellens|first=J.|title=Avesta|work=Encyclopadia Iranica|location=New York|url=http://www.iranica.com/articles/avesta-holy-book|date=15. prosinca 1987.|accessdate=18. siječnja 2011}}
*{{eneng iconoznaka}} {{cite web|last=Lendering|first=Jona|title=Avesta|work=Livius.org|url=http://www.livius.org/au-az/avesta/avesta.html|location=Amsterdam|year=2011.|accessdate=18. siječnja 2011}}