by Richard G. Lipsey & Peter O. Steiner $18.00
by Rofi'l $5.00
by Rhenald Kasali, Ph.D $30.00
by Drs. B. Boediono, M.Si $11.00
by Robert T. Kiyosaki $7.00
by Robert W. Hefner $9.00
by Mangasa Sidabutar $7.00
by Simon Philpott $9.00
by Dripa Sjabana $7.00
by Muh. Al-Munajjid $5.00
by Aisyah M. Alkalali $6.00
by Haryoto $5.00