Peppers, Don
Managing customer relationships : a strategic framework
John Wiley & Sons, 2011
 Buku Teks SO
Amos, Julie-Ann
Glorier business library : managing your time
Glorier International, 2001
 Buku Referensi
Gatrell, Caroline
Managing part-time study : a guide for undergrauates and postgrauates
McGraw-Hill, 2006
 Buku Teks
Beare, William
The Roman stage : a short history of latin drama in the time of the republic / William Beare
Methuen & Co., 1964
 Buku Teks SO
Managing projects large and small : the fundamentals skills for delivering on budget and on time
Harvard Business School Press, 2004
 Buku Teks SO