Jakarta : PT. Himat Makna Aksara, 2006,
Majalah, Jurnal, Buletin
Budi Djatmiko
STEMBI-Bandung business school, 2012
Buku Teks
Philippines : De La Salle University Manila, 2008,
Majalah, Jurnal, Buletin
Hongkong : CFO Publishing Corporation, 2003,
Majalah, Jurnal, Buletin
Buku Teks