by Tanenbaum $16.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $7.00
by Tini K $5.00
by Norman A. Hart $9.00
by Drs. Daryanto $6.00
by Drs. H. Lili M. Sadeli, M.Pd & Drs. Maman Ukas $6.00