Sudarminto
Teori dan Praktek, 2002
Buku Teks
Melnick, Sharon, author
[American Management Association, ], 2013
eBooks
Gutsche, Jeremy, 1978-, author
Crown Business, 2015
Buku Teks
Belsky, Scott, author
Noura Books, 2016
Buku Teks
Newport, Cal, author
Noura Books, 2016
Buku Teks