by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Gilang Priyadi S $11.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Kak Seto (Kata Pengantar) $9.00
by Pusham UBAYA $6.00
by Richard Denny $9.00