by N. Driyarkara, SJ (+) $40.00
by Jim Auer $6.00
by Ir. Abbas Siregar Djarijah $5.00
by Bambang Agus Murtidjo $7.00
by Ir. H. Rahmat Rukmana $6.00
by H. Rahmat Rukmana $6.00
by MUSA KAZHIM $8.00