International Institute For Applied Systems Analysis, 1981
Buku Teks
Potter, Norman N., author
Avi Pub., 1973
Buku Teks
edited by Ben Mephan
Routledge , 1996
Buku Teks
Lee, Dong Sun, author
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Bartono P. H., author
Yogyakarta, 2005
Buku Teks