Tomasowa, Francien Herlen, author
Lembaga Penerbitan Fakultas Pertanian Universitas Brawijaya , 2003
Buku Teks
Brown, P. Charles, author
Oxford University Press, 1984
Buku Teks
Erol Gelenbe, editor
[, Springer-Verlag], 2012
eBooks
edited by Geoffrey Leech, Greg Myers and Jenny Thomas
Longman, 1995
Buku Teks
Anand, Vera B., author
John Wiley & Sons, 1992
Buku Teks