Cattell, Raymond B.
World Book, 1957
Buku Klasik
Shita Harfiana
Fakultas Psikologi Universitas Indonesia, 2015
UI - Skripsi (Membership)
Eky Susilowati
2017
UI - Tesis (Membership)
Maslow, Abraham H.
Harper & Row, 1970
Buku Teks
Dalimunthe, Tapi Juliana
2002
UI - Skripsi (Membership)