by E. Martasudjita, Pr. $4.00
by Drs. Yatimin, M.Ag $9.00
by Prof. Dr. Veithzal Rivai, MBA $18.00
by Thomas R. Baechle $9.00
by E. Martasudjita, Pr. $3.00
by Marsana Windhu $3.00