by Pandji Anoraga, S.E., M.M $11.00
by Abdurrazak Naufal, Terj. H.A. Bukhari $7.00
by Yosef P. Widyatmadja $9.00
by Drs. Daryanto $7.00
by Prof. Dr. Sudarwan Danim $9.00
by Drs. Hafifi $22.00