by Prof. DR. Taliziduhu Ndraha $9.00
by Drs. A. Munir $7.00
by Prof. Drs. H.A.W. Widjaja $7.00
by Yayuk Sri Perwani, S.E $6.00
by Kim Kiyosaki $11.00
by Drs. Inu Kencana Syafiie $7.00