Holt, David H.
Prentice-Hall, 1992
Buku Teks
Lerner, Joshua
John Wiley & Sons, 2012
Buku Teks
Institute of technology management and entreprreneurship, kolej universiti teknikal kebangsaan malaysia,
Majalah, Jurnal, Buletin
Schollhammer, Hans
John Wiley & Sons, 1979
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editor, Ratih Hurriyati, Benny Tjahjono, Ade Gafar Adullah, Sulastri, Lisnawati
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