by M. Nipan Abdul Hailm & Suharno $6.00
by Ir. Ari Wijayani Purwanto $9.00
by M. Ghufron H. Kordi K $7.00
by Warisno $5.00
by Sumarmo I.S - Markam Suprapti $7.00
by R.W. Old dan S.B. Primrose $16.00
by Hatta, Mohammad $6.00
by $5.00
by Sisca Soewitomo $6.00
by - $12.00
by - $13.00
by Choirul Anwar, Drs. $6.00