by M. Ali Hasan $9.00
by Dr. H. Hamzah B. Uno, M.Pd $7.00
by Andrias Harefa $7.00
by Bambang Sutikno, Raja $9.00
by Prof. Dr. Sudarwan Danim $9.00
by $9.00
by Marwan Ibrahim $6.00
by - $7.00