by Rofi'l $5.00
by Karl May $5.00
by Robert T. Kiyosaki $11.00
by Drs. Muchdarsyah Sinungan $7.00
by A.H. Manurung, S.E $7.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00
by Abdussattar Ali $8.00