edited by M.H. Hamza
LASTED. ACTA Press, 1996
Buku Teks
Hutchinson, 1959
Buku Referensi
editors, Donald D. Carr, Norman Herz
Pergamon Press, 1989
Buku Referensi
Beckett, Kenneth A.
Grolier International, 1984
Buku Referensi
Raymond J. Corsini, editor
Wiley, 1987
Buku Referensi