by Prof. Yogianto Hartono, MBA $9.00
by WK $9.00
by BUDI PRAYITNO $6.00
by PROF. DR. IR. ALI KHOMSAN & $16.00
by Ir. H. Rahmat Rukmana $6.00
by Mary Helen Stefaniak $9.00
by Dr. Ir. H.S. Farid Ruskanda, M.Sc. A.P.U. $5.00