by Richard & David A. Saphiro $7.00
by dr. Andri Hartono $6.00
by Ann Demarais, Ph.D & Valerie White, Ph.D $11.00
by Maria A. Sardjono $7.00
by Hery Suhersono $12.00
by Prof. Yogianto Hartono, MBA $9.00
by Eddy Djunaedi Karnasudirdja $11.00