by Ir. Mul Muyani Sutedjo $6.00
by P. Suhardiman $6.00
by Ir. Abbas Siregar Djarijah $5.00
by $18.00
by H. Rahmat Rukmana $6.00
by Gunawan Widjaja & Kartini Mulyadi $7.00
by Benyamin Lakitan $7.00
by James Barros $11.00
by L. Prasetya, Pr. $6.00
by Marga T $11.00
by dr. Hartono G., dr. Badriul H., dr. Hanifah O. $9.00
by KUNTO WIBISONO $8.00