by T.F. Honour dan R.M. Mainwaring $11.00
by Pandji Anoraga, S.E, M.M $7.00
by Prof. Dr. Moh. Mahfud MD, S.H., S.U. $9.00
by TMII $6.00
by Prof. Dr. Suharsimi Arikunto $11.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $6.00
by - $11.00