by Dr. Hamzah B. Uno, M.Pd $0.00
by Drs. G. Kartasapoetra $7.00
by Glenda Crosling, Graeme Atherton, Siti Norbaya Azizan $59.99
by Drs. Daryanto $7.00
by Dr. Farida Rahim, M.Ed $7.00
by Drs. Abdul Chaer $7.00
by Drs. S. Margono $9.00