Belle Wallace, Dorothy A. Sisk, John Senior, editor
Sage, 2019
Buku Teks
Dickins, Mary
MGraw Hill, Open University Press, 2014
Buku Teks
Yantie Andhariswari
Fakultas Psikologi Universitas Indonesia, 2009
UI - Tesis (Open)
Syed, Khalida Tanvir
[, Sense], 2012
eBooks
Lang, James M.
Harvard University Press , 2013
Buku Teks