by Drs. Sisdjiatmo Kusumosuwidho, M.Sc $9.00
by Friedrich Nikol $5.00
by John Kirvan $6.00
by Drs. Amrullah A., S.F., dkk $11.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $7.00
by Jack Canfield, dkk $11.00
by Charles P. Kindleberger $7.00
by Mohaini Mohamed $9.00
by Vincent Gaspersz $7.00