edited by Diane L. Barlow, Paul T. Jaeger
Emerald, 2017
eBooks
Chuanfu Chen, Ronald Larsen, editors
Springer Open, 2014
Buku Teks
Abrizah Abdullah... (et al.)
University of Malaya, 2007
Buku Teks
Bowker-Saur, 2018
Majalah, Jurnal, Buletin
Sawoniak, Henryk
K.G. Saur, 1992
Buku Referensi