Berk, Laura E., author
Allyn and Bacon, 1989
Buku Teks
Bossard, James H.S., author
Harper & Brothers, 1953
Buku Teks
Ferdy Fabian, author
2004
UI - Skripsi (Membership)
Ahmad Susanto, author
Kencana Prenada Media Group, 2011
Buku Teks
Iis Fatimah, author
Universitas Indonesia, 2013
UI - Tesis (Membership)