by Les Rowntree ... [and others]
Prentice-Hall, 2011
Buku Teks SO
Blackwell , 2004
eBooks
Herod, Andrew
Willey Black well, 2009
Buku Teks SO
Hadyan Putra Mantari
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Makalah dan Kertas Kerja
Council for Research in Values and Philosophy, 2005
Buku Teks SO