by WK $13.00
by Prof. dr. H. Sidarta Ilyas, SpM $7.00
by dr. Sylvia D. Elvira $5.00
by Tarwoto $9.00
by W.A.R. Thomson $6.00
by dr. Nur Asikin, dr. V. Sutarmo, dr. Nanang S. $6.00
by V. Lestari $11.00
by HM Johan Tjasmadi $21.00
by M. Unggul Wibowo $7.00