by Joos van Vugt $7.00
by Suhardjo $6.00
by J. Englebert Dunphy, M.D., FACS, dkk $9.00
by Warisno $6.00
by J. Donald Walters $5.00
by Ir. Ibnu Dwi Buwono, M.Si $7.00
by Pandi Winoto, CP $6.00