Aderson, Nels
Free Press of Glencoe , 1961
Buku Teks
Brightbill, Charles K., author
Prentice-Hall, 1961
Buku Teks
Ramhadtu Prasaditama, author
Sage, 2014
Buku Teks
Rojek, Chris, author
Palgrave Macmillan, 2005
Buku Teks
Muhammad Rismart Firdaus, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Skripsi Membership