Murphy, Joseph, 1898-1981, author
Serambi Ilmu Semesta, 2009
Buku Teks
Nanda Shafira Keumala, author
Fakultas Psikologi Universitas Indonesia, 2019
UI - Skripsi (Membership)
Kumala Dewi, author
1998
UI - Skripsi (Membership)
Mazer, Norma Fox
Scholastic, 1987
Buku Teks
Rizzo, Thomas A.
Ablex Publishing , 1989
Buku Teks