by Prof. Drs. Piet A. Sahertian $7.00
by L.M. Samryn $9.00
by H. Dahlan Thaib, dkk $7.00
by Drs. Abu Ahmadi $9.00
by - $11.00
by Alex Kertamanah $9.00
by Jatna Supriatna $40.00