by Dr. Aidh Al-Qami $6.00
by Muh. Hasan Buraighisy $6.00
by Nasution, Harun $5.00
by P.J.B. Maris Marunnu, Pr $7.00
by Dr. Ir. Ahmad Khalid $11.00
by Suharso, A.S.P $6.00