Artikel Jurnal
Rita Maran, author
2000
Artikel Jurnal
McBeth, Adam, author
Oxford Univ Press, 2011
Buku Teks
edited by Julie Peters and Andrea Wolper
Rouledge, 1995
Buku Teks
edited by Jeffrey F. Addicott, Md. Jahid Hossain Bhuiyan, Tareq M.R. Chowdhur
Oxford University press, 2012
Buku Teks