Artikel Jurnal
Mohd Aidil A. Abdullah, author
Faculty of Engineering, Universitas Indonesia, 2013
Artikel Jurnal
Barsoum, Michel W., author
McGraw-Hill, 1997
Buku Teks
Freyberg, Annabel, author
Laurence King Publishing, ,
Buku Referensi
Peterson, Susan, author
Laurence King Publishing, 2000
Buku Referensi