by Robert L. Heilbroner $12.00
by Prof. Drs. S. Pamudji, M.P.A $9.00
by Dr. H. Abuddin Nata, MA $7.00
by Masnur Muslich $9.00
by Imam Al-Ghazali $9.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00