by Al. Purwa Hadiwardoyo, MSF. $4.00
by EKM Masinamboum $8.00
by Hal Wissel, Ph.D $9.00
by Dr. Al. Purwa Hadiwardoyo, MSF. $3.00
by John Kirvan $6.00
by $4.00
by Prof. Mr. Dr. Sudargo Gautama $8.00
by Saidin, SH $18.00
by Agus Maryono $9.00
by Djojosoebagio, Soewondo $9.00
by Drs. Zainuddin, dkk $7.00
by Nursalam $7.00