by Susmayati, B.A., dkk $6.00
by Prof. Dr. Suharsimi Arikunto, dkk $7.00
by J. Robert Starratt $7.00
by Richard G. Lipsey & Peter O. Steiner $16.00
by Dr. H. Amzah B. Uno, M.Pd $7.00
by Drs. Rudy T. Erwin, S.H $6.00
by H. Dahlan Thaib, dkk $7.00
by Arif Yulianto $16.00
by Bambang Sunggono $9.00
by Eng Antonio Augusta Borelli Machado $3.00