by Al. Wahjasudibja, Pr. $6.00
by Ir. Daisy P. Sriyadi Hendaryono $6.00
by Marsana Windhu $3.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by Muh. Al-Munajjid $5.00
by John Kirvan $6.00