Spear, Percival
The University of Michigan Press, 1961
Buku Teks
Brown, Joe David
Time Incorporated, 1961
Buku Teks SO
Hobbs, Lisa
McGraw-Hill, 1967
Buku Teks SO
Zimmer, Heinrich
Meridian Books, 1956
Buku Teks SO
Nehru, Jawaharlal, 1889-1964
New Delhi, Oxford University Press, 1982,
Buku Teks