1941
Buku Teks
Roderick, Lawson
London Angus & Robertson 1985
Buku Teks
Roderick, Colin, author
Angus & Robertson, 1985
Buku Teks
Hemastya Diranti, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)
Emiliana Cindie Kusumawati, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)