Field, Richard, author
Learning Matters,, 2012
Buku Teks
Seden, Janet, author
Open University Press, 2005
Buku Teks
Sharma, Y.D.
Director General, Archaeological Survey of India, 1974.
Buku Teks
edited by Maarten van Ham
Springer, 2012
eBooks
Dugan, Michael, author
Melbourne: The MAcmillian Company of Australia; 1984,
Buku Referensi