by Ir. Abbas Siregar Djarijah $5.00
by Ir. L. Widarto & FX. Sudarto C. Ph $5.00
by WK $13.00
by Reeves $13.00
by WK $11.00
by Thabrani $12.00
by Munir Fuady, S.H., M.H. LL.M $8.00
by Ir. Hieronymus Budi Santoso $5.00
by Sawitri Supardi Sadarjoen $9.00
by Dr. Handrawan Nadesul $11.00
by Th. Endang Purwoastuti $6.00
by M. Idris Ramulyo, S. H., M. H. $7.00