by Drs. Bambang S., dkk $9.00
by Chia Haris $13.00
by Muhammad Nejatullah Siddiqi $7.00
by Dra. Dwi Hayu Agustini, MBA $9.00
by - $11.00
by Drs. Tgk. H.Z.A. Syihab $6.00
by Dr. Ronald Hutapea, SKM, Ph.D $9.00