by Drs. Hafifi
$22.00

by Prof. Dr. F.G. Winarno
$7.00

by Syaikh. M. Ahmad Ismail Al-Muqaddam
$6.00

by Halimuddin, S.H
$7.00

by Richard Carlson, Ph.D
$9.00

by rmansyah Effendi, M.Sc
$6.00