Sykes, Bryan
The nature of the beast: the first scientific evidence on the survival of apemen into modern times
Hodder & Stoughton Ltd., 2014
 Buku Teks
Von Ward, Paul
Dismantling the pyramid/ Paul Von Ward
Delphi Press, 1981
 Buku Teks
Rima Cahayani
Discovery centre
Fakultas Teknik Universitas Indonesia, 1994
 UI - Skripsi Membership
Nehru, Jawaharlal, 1889-1964
The discovery of India
New Delhi, Oxford University Press, 1982,
 Buku Teks
Nehru, Jawaharlal, 1889-1964
The discovery of India
The John Day, 1945
 Buku Teks