Bunyard, R.S.
Macdonald & Evans Ltd., 1979
Buku Teks
Shah, Giriraj
Anmol Publications PVT. Ltd., 1999
Buku Referensi
Le Boutillier, Cornelia Geer
Columbia University Press, 1950
Buku Teks SO
A Sudiana Sasmita
UIII Press, 2023
Artikel Jurnal
Singhvi L.M. (Laxmi Mall)
Ocean Books, 2002
Buku Teks