Akbar Syakir, author
[, Fakultas Psikologi Universitas Indonesia], 2014
UI - Skripsi (Membership)
Egan, Gerard, author
Brooks, 2014
Buku Teks
Chang, Valeri, author
Cengage Learning, 2013
Buku Teks
Fahmi Ratna Juwita, author
Universitas Indonesia, 2016
UI - Tesis (Membership)
Whittaker, James K., author
Aldine, 1975
Buku Teks