by Prof. Dr. H.A.R. Tilaar, MSc.Ed $11.00
by Datje Rahajoekoesoemah $28.00
by Prof. Dr. Soekidjo Notoatmodjo $9.00
by Prof. Dr. Suharsimi Arikunto $18.00
by Ali Masjono Mukhtar, S.E., M.Bit $7.00
by - $9.00
by Drs. Bayu Surianingrat $6.00