by Philip Etienne R. $3.00
by Chris Inderayanto $5.00
by Yaniyullah $12.00
by Ir. Setijo Pitojo $6.00
by Martin Wijokongko $6.00
by Dr. Zakiah Daradjat, dkk $7.00
by Dr. Muslim Nasution $6.00
by - $5.00
by Prof. Dr. Abdul Munir Mulkhan $12.00
by Reni Pri Astuti $6.00