Don, Abdul Ghafar, author
Universiti Kebangsaan Malaysia, 2000
Buku Teks
Zainah Anwar, author
LP3ES, 1990
Buku Teks
Strategic Information and Research Development Centre, 2005
Buku Teks
Salmy Edawati Yaacob, author
Utusan Publications & Distributors Sdn Bhd, 2009
Buku Teks
Ahmad, Kassim, author
Dewan Bahasa dan Pustaka, 1987
Buku Teks