Allen, Graham (2000). Intertextuality. New York: Rutledge.
Arberry, A.J. (1991). Tails from the Mathnvi. George Allen & Unwin (Eds.). London, (1961). Burlingume E.W., Buddhist Parables. Delhi.
Gebb, .A.R. & Karmers (1965). Shorter Encyclopaedia of Islam. Leiden: Brill.
Henning, W.B. Soghdian Tales (BSOAS) pp. 465-487.
Max Muller, F. (1984). "A Migration of Fables" in Chips from a German Workshop. Vol. IV. New York. pp. 139- 180.
Nicolson, R.A. (1940). The Mathnavi of Jalalluddin Rumi. Vol. VIII. London: Cambridge University Press.
Noss, J.B. (1955). Man's Religions. 10th Ed. New York: the Macmillan Company.
Winternitz, M.A. (1972). History of Indian Literature. Vol. II. Delhi, Burlingame, E.W. (1991) Buddhist parables. Delhi.
Udana (2012). Exclamations, A translation with an introduction and Notes by Thanissaro Bhikkhu, (Geoffrey DE Graff).
https://www.cs.princeton.edu/~rywang/berkeley/258/parable.html (1394/08/12).
http://www.buddhisma2z.com/content.php?id=429 (1395/08/25).