Cambridge University Press, 1996
Buku Teks
edited by G.C. Archibald
Penguin Education, 1971
Buku Teks
Lincolin Arsyad, author
BPPE, 2008
Buku Teks
Lincolin Arsyad, author
BPFE , 1998
Buku Teks
Boulding, Kenneth E. (Kenneth Ewart), 1910-1993, author
Harper & Brothers, 1955
Buku Teks