by Dr. Oemar Hamalik $7.00
by Ir. Rabiatual Adawyah, M.P $7.00
by Drs. Daryanto $7.00
by Drs. Amin Wijaja Tunggal, M.B.A $11.00
by Ir. Moehar Daniel, M.S & Ir. Darmawati, M.Sc & Ir. Nieldalina, M.Si $7.00
by Munaf H. Regar $9.00
by Ahmad bin Abd. Aziz al-Hamdani $5.00