Pinal, Francisco del, editor
Springer, 2012
eBooks
Khashab, Mouen, author
Slack Incorporated, 2014
Buku Teks
Nutan Jain, editor
Jaypee Brothers Medical Publishers, 2015
Buku Teks
Scragg, Alan, author
CABI, 2009
Buku Teks
United Nations , 1971
Buku Teks