edited by K.M. George
Sahitya Akademi, 1993
Buku Referensi
Sarkar, Amal
Punthi Pustak, 1974
Buku Teks
Oliver, Daniel
Cambridge University Press , 2013
Buku Teks
Menski, Werner F.
Curzon Press, 2001
Buku Teks
edited by Arvind Krishna Mehrotra
Permanent Black in association with Ravi Dayal Publishers, 2003
Buku Teks