by Sutarni M. Soerjowinoto $6.00
by Ir. H. Rahmat Rukmana $5.00
by Dr. Ir. Wisnu Cahyadi, M.Si $11.00
by Dr. Paul Suparno, SJ. Dkk $6.00
by Suharso, A.S.P $6.00
by H. Rahmat Rukmana $6.00
by Dr. D. F. Walker $7.00
by J. Donald Walters $3.00
by Pamela Freeman $5.00
by Drs. Thomas Suyatno, dkk $9.00
by - $20.00
by - $12.00