by Drs. Suwarno $7.00
by Prof. Dr. H.A.R. Tilaar, MSc.Ed $9.00
by J. Drost, SJ $6.00
by Prof. Dr. Burhanuddin Salam, M.M $7.00
by Sujono Samba $6.00
by Huub de Jonge $9.00