by $13.00
by Ir. Endar Sugiarto, B.A $6.00
by Prof. Dr. Spillane, SJ $6.00
by C. A. Qadir $19.00
by Prof. Mr. Notonagoro $9.00
by Stanley Bing $11.00
by Hal Hill $12.00
by Hasan Hanafi $7.00
by Al. Wahjasudibja, Pr. $12.00