editor, Josephine Donovan
University Press of Kentucky, 1975
Buku Teks
Walker, William
Cambridge University Press, 2009
eBooks
Longman , 1988
Buku Teks SO
Compiled and edited by Dorothy Nyren Curley, Maurice Kramer, Elaine Fialka Kramer
Continuum, 1989
Buku Referensi
M. A. R. Habib
Cambridge University Press, 2018
eBooks