by Drs. Sofwan Badri
$6.00

by Drs. Harry Waluya
$9.00

by Drs. Amin Widjaja Tunggal, Ak., M.B.A
$6.00

by Dr. Sofyan Syafri Harahap, M.S,Ac
$7.00

by Prof. Dr. Makmur, M.Si
$7.00

by Eriyanto
$11.00