by Mohammad Ali $9.00
by Drs. Safri Nurmantu MSi $9.00
by $13.00
by Drs. Cholid Narbuko dan Drs. H. Abu Ahmadi $7.00
by Dergibson Siagian & Sugiarto $13.00
by Charles P. Kindleberger $7.00
by Rita Erwiyah $8.00