by Ir. H. Muhammad Syakir Sula, AAIJ, FIIS $31.00
by Azimah Soebagijo $8.00
by Drs. Wisnubroto Widarso $5.00
by Muhammad Nashiruddin al-Albani $12.00
by Dr. Machasin MA $6.00
by Prof. Dr. Machasin MA (ed.) $7.00