by Ir. Bambang Cahyono $7.00
by Ir. Abbas Siregar Djarijah $5.00
by Y. T. Prasetiyo $5.00
by M. Ali Hasan $5.00
by Ir. Budi Samadi $0.00
by Dr. Khalid Na'im $5.00
by $6.00
by Darmawijaya, St., Pr. $8.00
by O. Solihin & Iwan Januar $6.00
by Indriani $11.00
by Muhammad Izuddin Taufiq $26.00