Dingle, J.
Arnold , 1997
Buku Teks
Keat, Paul G., author
Pearson Education (Prentice Hall), 2009
Buku Teks
Bambang Sulistyanto, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2008
UI - Disertasi (Open)
Alkin, Marvin C., author
Sage, 1985
Buku Teks
Tatiana Valentine Guy, Miroslav Karny, David H. Wolpert, editors
[Springer, ], 2012
eBooks