Costa, Carol
Alpha teach yourself: accounting dalam 24 jam
Prenada Media , 2004
 Buku Teks
Costa, Carol
Alpha teach yourself: accounting dalam 24 jam
prenada Media, 2007
 Buku Teks
Mingus, Nancy
Alpha teach yourself : project management dalam 24 jam
Prenada, 2004
 Buku Teks
Miller, Michael
Alpha teach yourself: business plans dalam 24 jam
Prenada Media, 2005
 Buku Teks
Miller, Michael
Alpha teach yourself: business plans dalam 24 jam
Prenada Media Group, 2008
 Buku Teks