by Drs. Radno Harsanto, M.Si $9.00
by Dr. Mohammad Muslehuddin $7.00
by Drs. Ary H. Gunawan $11.00
by Prof. DR. Made Pidarta $11.00
by Drs. Ign. Masidjo $9.00
by Prof. Dr. Oemar Hamalik $7.00