Becker, F., author
ISLSCP-Secretariat, 1988
Buku Teks
Barry, Roger G., author
Routledge, 1998
Buku Teks
Kelkar, R.R., author
BS Publications, 2017
Buku Teks
edited by Ulrich Schumann
[Springer, ], 2012
eBooks
Seargent, David A. J., author
Springer, 2012
eBooks