by H. Rahmat Rukmana $5.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by H. Rahmat Rukmana $6.00
by Prof. DR. Koentjaraningrat $9.00
by Ir. Loekas Soesanto, M.S., Ph.D $11.00
by Lim Tech Ghee $6.00