by Louis Rosenthal $6.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $9.00
by Leden Marpaung, S. H. $7.00
by Prof.DR. Budi Winarno, MA $9.00
by Ronald H. Chilcote $16.00
by Dino Patti Djalal $6.00