by $4.00
by Jacque Semelin $5.00
by Dr. Ir. H.S. Farid Ruskanda, M.Sc. A.P.U. $5.00
by Syekh Abdul Qadir Ahmad Atha $6.00
by Ema M.S $6.00
by Prof. Dr. M. Mutawalli asy-Sya'rawi $6.00