Speijer, J.S.
Leyden Brill 1886
Buku Teks
Burrow, T.
Faber and Faber, [date of publication not identified]
Buku Teks
Gonda, J. (Jan), 1905-1991, author
N.V. Noord-Hollandsche Uitgevers Maatschappij, 1967
Buku Teks
Kale, M.R., author
Motilal banarsidass publishers private limited, 1992
Buku Referensi
Macdonell, Arthur Anthony, 1854-1930, author
Oxford University Press, 1927
Buku Teks