Ladyman, James
Understanding philosophy of science
Routledge, 2002
 Buku Teks
Locke, John
An essay concerning human understanding
J.M. Dent & Sons, 1947
 Buku Teks
Human Studies : A journal for philosophy and the social science
Kluwer Academic Publishers,
 Majalah, Jurnal, Buletin
Syafruddin Prawiranegara
Human development = Pola pembangaunan yang sesuai dengan ajaran-ajaran islam dan uud'45 / Syafruddin Prawiranegara
Bulan Bintang, 1977
 Buku Teks
Corbett, Sister Thomas Albert
People or Masses A Comparative Study in Political Theory
University of America Press, 1950
 Buku Teks