by Dr. Ronald Hutapea, SKM, Ph.D $9.00
by Prof.Dr. H.M. Yunan Yusuf (ed.) $28.00
by Sulaiman Hamid, SH $7.00
by Sururin, M.Ag $7.00
by Imam Tholkhah $7.00
by J. Guwandhi, SH. $6.00