edited by Wolfgang Schneider, Ruth Hengsteler, B. Sodian
Lawrence Erlbaum Assossiates, 2004
Buku Teks
Bjorklund, David F., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Gillespie, John Thomas, 1928-, author
Libraries Unlimited, 1998
Buku Teks
Oates, John, author
Blackwell , 2004
Buku Teks
Olga Stephiana, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Skripsi (Membership)