Hana Nadzifah, author
Fakultas Psikologi Universitas Indonesia, 2020
UI - Skripsi (Membership)
Nichols, Eugene D.
Rinehart Press, 1975
Buku Teks
Skeen, Kenneth C., author
Addison-Wesley, 1969
Buku Teks
Wheeler, Ruric E., author
John Wiley & Sons, 1996
Buku Teks
Ardan Aziz Rahman, author
2018
UI - Skripsi (Membership)