Bernadine Estherline Shafirine
Hubungan antara hope dan readiness for change pada karyawan industri kreatif = The correlation between hope and readiness for change among creative industry employees
Universitas Indonesia, 2015
 UI - Skripsi (Membership)
Analisis 'hope' pada atlet bulu tangkis Indonesia juara dunia era '70 & '90
 Artikel Jurnal
Carlson, Neil R.
Psychology : the science of behavior
Allyn and Bacon, [date of publication not identified]
 Buku Teks
Carlson, Neil R.
Psychology : the science of behavior
[publisher not identified], 1997
 Buku Teks
Santrock, John W.
Psychology : the science of mind and behavior
W.C. Brown Publisher, 1991
 Buku Referensi