by Drs. Husein Umar, S.E., M.M., MBA $9.00
by Ken Blanchard & Susan F $7.00
by Rachmadi Usman, S.H $11.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Wirakusumah, Sambas $7.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00