by Drs. Suwarna Pringgawidagda, M.Pd $18.00
by M. Ali Hasan $7.00
by Hasan Shadily, M.A $12.00
by N. John Myer $12.00
by Greg Barton $16.00
by Desmizar, S.E., M.M $12.00
by Prof. Drs. S. Pamudji, M.P.A $9.00
by Ir. Mul Muyani Sutedjo $7.00