by Ir. M. Lies Suprapti $6.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by M. Ali Hasan $7.00
by H. Rahmat Rukmana $6.00
by Abdul Majid S $7.00
by Qadi 'Iyad Ibn Musa $7.00