Gaskell, David R.
Taylor and Francis, 2008
Multimedia
Gaskell, David R., author
Taylor & Francis Group, 2008
Buku Teks
Rao, Y.V.C., author
Wiley Eastern, 1993
Buku Teks
Lupis, C.H.P., author
North Holland, 1983
Buku Teks
Morrill, Bernard, author
Pergamon Press, 1972
Buku Teks