by Sutarmo Setiadji, V $5.00
by DM. Etter, Terj. Drs. Kusuma Wiraman $13.00
by Drs. Save M. Dagun $7.00
by Drs. Ary H. Gunawan $11.00
by Drs. Sudarso $6.00
by Prof. Dr. dr. H. Dadang Hawari, Psikiater $7.00
by Dra. M. Sri Sulastri Rifai, M.Pd $6.00