↑ Vullers, Johann August (1856–1864), “یاد”, in Lexicon Persico-Latinum etymologicum cum linguis maxime cognatis Sanscrita et Zendica et Pehlevica comparatum, e lexicis persice scriptis Borhâni Qâtiu, Haft Qulzum et Bahâri agam et persico-turcico Farhangi-Shuûrî confectum, adhibitis etiam Castelli, Meninski, Richardson et aliorum operibus et auctoritate scriptorum Persicorum adauctum (in Latin), volume II, Gießen: J. Ricker, pages 1499a–1500b
↑ MacKenzie, D. N. (1971), “ayād”, in A concise Pahlavi dictionary, London, New York, Toronto: Oxford University Press, page 15
↑ Cheung, Johnny (2007), “*HiaH”, in Etymological Dictionary of the Iranian Verb (Leiden Indo-European Etymological Dictionary Series; 2), Leiden, Boston: Brill, →ISBN, page 175