March, Lionel
Academy Editions, 1998
Buku Referensi
Ritter, Lawrence S.
Basic Books, 1970
Buku Teks
Hersey, George L.
MIT Press, 1983
Buku Teks
Agoes Ariesmunandar ; Davison, Julian ; Bromer, Bea ; Durmacay, Jacques
Archipelago Press, 1998
Buku Referensi
Maulidta Masyithah
Fakultas Psikologi Universitas Indonesia, 2012
UI - Skripsi (Open)