by M. Hadi Masruri $7.00
by Drs. H. Basri Iba Asghary $11.00
by Suharso, A.S.P $6.00
by Ir. Ari Wijayani Purwanto $11.00
by Ir. Hieronymus Budi Santoso $5.00
by John Kirvan $6.00
by Dr. Ir. M\'Imadduddin Abdul Rahim, M.Sc $6.00
by Dr. Abdullah bin Wakil asy-Syaikh $5.00
by Hilman Hariwijaya & Boim Lebon $6.00