edited by Rob Elkington, Madeleine Van Der Steege, Judith Glick-Smith, Jennifer Moss Breen
Emerald, 2017
eBooks
SEARO, 1999
Buku Teks
World Health Organization, 1987
Buku Teks
United Nations Departemen of Public Information, 1990
Buku Teks
Clark, David, 1946-
Routledge, 1996
Buku Teks