Atkinson, John W., author
D. Van Nostrand, 1978
Buku Teks
McClelland, David Clarence, author
Cambridge University Press, 1987
Buku Teks
edited by David C. McClelland
Appleton Century Crofts, 1955
Buku Teks
Ani Oktarina, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Skripsi (Membership)
Fakultas Ilmu Keperawatan Universitas Indonesia, 2006
UI - Tugas Akhir