by St. Darmawijaya, Pr $7.00
by Basuki Imamudin $13.00
by Stefan Leks $12.00
by Ir. Abbas Siregar Djarijah & Ir. Harsono Puspowardoyo $5.00
by Djoko Pramono $9.00
by Jonni M.S, M.Sitorus, Nelly K $7.00