by WK $11.00
by Garry D. Freidnaan $7.00
by Thomas W. Hanton $6.00
by WK $16.00
by Aziz Alimul $7.00
by Hefni Effendi $9.00
by $12.00
by Trias Kuncahyono $11.00
by Prof. Dr. dr. H. Dadang Hawari, Psikiater $6.00