by Swasono, Sri-Edi $6.00
by $13.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Asnath M. Fuah. Dkk $8.65
by CIRES $10.00