by Prof. Dr. H. Abdurrahmat Fathoni, M.Si $7.00
by dr. Yoannes Y. Laban $5.00
by F.X. Djumialdji, S.H $7.00
by Ir. Mul Muyani Sutedjo $7.00
by Tarwoto $9.00
by Katzung $30.00