by Ir. M. Lies Suprapti $5.00
by H. Rahmat Rukmana $6.00
by Ir. Abbas Siregar Djarijah $5.00
by Ahmadi Isa $6.00
by A. Sonny Keraf & Mikhael Dua $7.00
by Rumsari Hadi Sumarto & Lukas Dwiantara $7.00
by E. Siswoyo $6.00