by $4.00
by Dr. Ir. Muhammad Rasyaf, MS $11.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Slamet Soeseno $5.00
by Ir. Suprio Guntoro $5.00
by Drs. G. Kartasapoetra $7.00
by Drs. Sudarsono, S.H., M.Si $20.00
by R.M. Comisarow, MD & M. Barkin, MD $5.00
by Andrias Harefa $7.00
by - $9.00
by K.H.D. Zawawi Imron $6.00
by Siswandi, Drs. $9.00