by Prof. DR. Taliziduhu Ndraha $11.00
by Drs. Bambang Siswanto, M.A $6.00
by $6.00
by Vincent Gaspersz $13.00
by Drs. A.W. Widjaja $9.00
by Drs. Abdulsyani $9.00
by Eddy Djunaedi Karnasudirdja $12.00