Marotta, Theodore W.
Pearson - Prentice Hall, 2005
Buku Teks
Marotta, Theodore W.
Prentice-Hall, 1997
Buku Teks
Kottas, Dimitris
Basheer , 2011
Buku Referensi
Hornbostel, Caleb
John Wiley & Sons, 1978
Buku Teks
Spiegel, Ross
John Wiley & Sons, 1999
Buku Teks