Howlett, Michael
Oxford University Press, 2009
Buku Teks
Kluwer Academic Publishers, 2018
Majalah, Jurnal, Buletin
Endang Sri Purwanti
Fakultas Teknik Universitas Indonesia, 2012
UI - Tesis Open
Weimer, David L.
Prentice-Hall, 1992
Buku Teks
Weimer, David L.
Pearson Prentice Hall, 1989
Buku Teks