by dr. H. Taufiq Pasiak, M.Pd $11.00
by HELVY TIANA ROSA $8.00
by Drs. E. Sumaryono, MA $6.00
by Fachruddin M. Mangunjaya, Ahmad Sudirman Abbas $6.00
by AFIFAH AFRA $8.00
by Donald A. Chu, Ph.D $6.00