Ramhadtu Prasaditama, author
Sage, 2014
Buku Teks
Brightbill, Charles K.
Prentice-Hall, 1961
Buku Teks
Aderson, Nels
Free Press of Glencoe , 1961
Buku Teks
Muhammad Rismart Firdaus, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Skripsi (Membership)
Aldila Surya Hutami, author
Universitas Indonesia, 2016
UI - Skripsi (Membership)