by Radis Bastian $5.28
by Drs. Husein Umar, S.E., M.M., MBA $13.00
by Prof. DR. Taliziduhu Ndraha $7.00
by Prof. Drs. H. A. W. Widjaja $9.00
by Arief, Sritua $7.00
by Audrey Kahin $18.00