William Wardoyo
Kebaikan dan ketepatan menurut W.D. Ross sebagai etika prima facie duties = Right and good according to W.D. Ross as prima facie duties ethics
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2016
 UI - Skripsi Membership
Buddhist philosophy : a comparative approach
Steven M. Emmanuel, edited
John Wiley & Sons, 2018
 Buku Teks SO
Mensch, James Richard
Hiddenness and alterity: philosophical and literary sightings of the unseen
Duquesne University Press, 2005
 Buku Teks SO
Studies in Philosophy And The History of philosophy
edited by John K. Ryan
The Catholic University of America Press, 1963
 Buku Teks SO
Patrick, George Thomas White
Introduction to philosophy
George Allen and Unwin, 1925
 Buku Teks SO