by - $9.00
by Prof. H. Muzzayin Arifin $7.00
by A. Yogaswara $9.00
by Dr. B. Siswanto Sastrohadiwiryo $9.00
by Dr. Eti Rochaety $11.00
by Dan Waters $7.00
by Ir. Setijo Pitojo $6.00
by $7.00
by Syaifuddin $12.00
by - $7.00
by Dr. Hery Winarsi, M.S $11.00
by Leden Marpaung, S. H. $7.00