by Dr. Farida Rahim, M.Ed $7.00
by Drs. Jumingan, S.E., M.M., M.Si $11.00
by Julius R. Latumaerissa, S.E., M.M $7.00
by Dr. Moh. Shochib $9.00
by - $9.00
by Dr. B. Siswanto Sastrohadiwiryo $12.00