Perrin, Karen M.
Jones & Bartlett Learning, 2016
Buku Teks
Lindawati
Universitas Indonesia, 2003
UI - Tesis Membership
edited by David Banister and Peter Hall
Mansell, 1981
Buku Teks
Smith, Ronald D.
Lawrence Erlbraum Associates, Publishers, 2005
Buku Teks
Smith, Ronald D.
Lawrence Erlbraum Associates, Publishers, 2005
Buku Teks