Hubbard, L. Ron, 1911-1986
Adventurer/​explorer : daring deeds &​ unknown realms
Bridge Publications, 2012
 Buku Referensi
Darwin, Charles Robert
Charles Robert Darwin autobiography edited by Sir and an introductory essay the meaning of Darwin by
New York Henry Schuman 1950
 Buku Teks
Brodrick, S.J. James
Saint Francis Zavier (1506-1552) a biografphy
Wicklow Press, 1952
 Buku Teks
Roland, Charles P.
An American Iliad : the story of the civil war / Charles P. Roland
McGraw-Hill, 1991
 Buku Teks
Symons, Julian
Charles Dickens
Arthur Barker, 1951
 Buku Teks