Thapar, Romila
Oxford University Press, 1961
Buku Teks
Eggermont, Pierre Herman Leonard, author
E.J. Brill, 1956
Buku Teks
Thapar, B.K.
Unesco, 1985
Buku Teks
Goodman, Craufurd D., author
Institute of International Education, 1966
Buku Teks
Spengler, Oswald, author
George Allen and Unwin, 1956
Buku Teks