by Tangoro, Dwi $6.00
by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Djoehana Setyamidjaja, M.Ed $6.00
by H. R. Kartadisastra $6.00
by H. Rahmat Rukmana $5.00
by Perserikatan Bangsa-Bangsa $7.00
by Riaz Hasan $11.00
by - $16.00