by Drs. H. Burhanuddin Salam, M.M $9.00
by Ir. Sumeru Ashari, M.A gr. Sc $7.00
by Prof. Dr. H.A.R. Tilaar, MSc.Ed $9.00
by Joeniarto, S.H $7.00
by Drs. Djalinus Syah $9.00
by $12.00