by Adolf Heuken $18.00
by Prof. H. Hilman Hadikusuma, S.H. $8.00
by Prof. DR. Ir. H. Tridoyo Kusumastanto, MS $9.00
by Maria A. Sardjono $7.00
by Ir. M. Lies Suprapti $7.00
by Hendri Ma'ruf $11.00
