Popper, Karl R.
The logic of scientific discovery
Basic Books, 1959
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Sykes, Bryan
The nature of the beast: the first scientific evidence on the survival of apemen into modern times
Hodder & Stoughton Ltd., 2014
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Von Ward, Paul
Dismantling the pyramid/ Paul Von Ward
Delphi Press, 1981
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Nehru, Jawaharlal, 1889-1964
The discovery of India
New Delhi, Oxford University Press, 1982,
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Nehru, Jawaharlal, 1889-1964
The discovery of India
The John Day, 1945
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