by dr. Andry Hartono, Sp.GK $7.00
by Dr. K.H. Didin Hafidudin $12.00
by Ir. M. Lies Suprapti $7.00
by Muhammad Ahmad Muh. Ali $5.00
by Prof. Dr. Sri Mulyani E. S $12.00
by B. Sandjaja $9.00