by Ter Harr $12.00
by Ir. M. Lies Suprapti $7.00
by WK $16.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A. $7.00
by Drs. Misdyanti dan R.G. Kartasapoetra, S.H $7.00
by $5.00