by Prof. Dr. Prijono Tjiptoherjanto $6.00
by ISEI $13.00
by Fachruddin M. Mangunjaya $6.00
by Pandji Anoraga, S.E., M.M dan H. Djoko Sudantoko, S.Sos., M.M $13.00
by Desmizar, S.E., M.M $12.00
by Dolf de Roos, Ph.D $9.00