Sunu Bagaskara
Fakultas Psikologi Universitas Indonesia, 2019
UI - Disertasi Membership
Candida Castro, editor
CRC Press, Taylor & Francis Group, 2009
Buku Teks SO
Miller, Johnm
Kogan Page, 1994
Buku Referensi
Maulida Bellafaransi
2015
UI - Skripsi Membership
Lefton, Lester A.
Allyn and bacon , 1997
Buku Teks SO