by Freddy Rangkuti $9.00
by Henry Bustani $9.00
by Johannes Lim $9.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Michael P. Todaro $16.00
by Drs. Husein Umar, S.E., M.M., MBA $9.00