Agung Nugraha
Cinta dan persahabatan : sintesis antara etika kebahagiaan dan etika kewajiban menurut Robert Spaemann = Love and friendship : synthesis between eudaimonic ethics and deontological ethics according to Robert Spaemann
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2012
 UI - Skripsi Open
Russell-Hunter, W.D.
A life of invertebrates / W.D. Russell-Hunter
Macmillan Publishing Co., 1979
 Buku Teks
Valgardson, W.D.
Red dust : stories / by W.D. Valgardson
Oberon Press, 1978
 Buku Teks
The philosophy of mathematics / Editor by W.D. Hart
Oxford University Press, 1998
 Buku Teks SO
Nainggolan, Hastuti
Tanggung jawab direksi perseroan terbatas menurut konsep 'fiduciary duties'
Fakultas Hukum Universitas Indonesia, 2005
 UI - Tesis Membership