Abdul Rahman Abdul Aziz, Mustapa Kassim
Berita Publishing Sdn Bhd, 2009
Buku Teks
Abdul Rahman Abdul Aziz
Berita Publishing Sdn Bhd, 2009
Buku Teks
Sime Darby Berhad, 2007
Buku Referensi
Johns, Dean.
Buku Teks
Johns, Dean., author
Strategic Information and Research Development Centre , 2009
Buku Teks