Mahathir bin Mohamad, 1925-, author
Pelanduk Publications, 2002
Buku Teks
Chomsky, Noam, author
Fontana/Collins , 1975
Buku Teks
Morgan, Charles, author
Macmillan, 1946
Buku Teks
Foundation for Rural Education and Development (FRED) (June 12, 1999, 1999
Buku Teks
Hughes, Fredrick W., author
Prentice-Hall, 1983
Buku Referensi