by Rai Wijaya $7.00
by Dr. Ir. Wisnu Cahyadi, M.Si $11.00
by Drs. Husein Umar, S.E., M.M., MBA $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by Prof. Djafaruddin $9.00
by ISEI $26.00