Gibran, Kahlil, 1883-1931
The Prophet
Alfred A. Knopf, 1966
 Buku Teks
Political systems and the distribution of power
edited by Michael Banton
Tavistock Publications, 1972
 Buku Teks
Priestley, J. B. (John Boynton), 1894-1984
good companions
Leipzig: Bernhard Taucnitz, 1935
 Buku Teks
Priestley, J. B. (John Boynton), 1894-1984
The Good Companions
 Buku Teks
Foreman, John
Philippine Islands : political, geographical, social and commercial history of the Philippine archipelago
T. Fisher Unwin , 1906
 Buku Teks