Eggermont, Pierre Herman Leonard
The chronology of the reign of Asoka Moriya : a comparison of the data of the Asoka inscriptions and the data of the tradition
E.J. Brill, 1956
 Buku Teks SO
Sastri, K.A. Nilakanta
History of India
S. Viswanathan, 1950
 Buku Teks SO
Nehru, Jawaharlal, 1889-1964
The discovery of India
Meridian Books, 1951
 Buku Teks SO
Nehru, Jawaharlal, 1889-1964
The discovery of India
Meridian Books Limited, 1951
 Buku Teks SO
Chandra, Bipan
Modern India
National Council of Educational Research and Training, 1971
 Buku Teks SO