by $4.00
by Prof. Dr. H. Jalaluddin $11.00
by Dr. Ir. M. Imadduddin Abdul Rahim, M.Sc $7.00
by Memed Humaedillah $5.00
by Penerbit OBOR $5.00
by Muhammad Abdullah al-Khatib $5.00
by Prof. Dr. H. Zainuddin Ali, M.A $7.00