"Chandra Wahyu Purnomo,Chris Salim,Hirofumi Hinode","Solid acid catalysts preparation from biomass waste","Regional Symposium on Chemical Engineering 2010","Regional Symposium on Chemical Engineering 2010, Book of Abstracts",,,," CRE669",2010,Nov. "CHANDRA WAHYU PURNOMO,CHRIS SALIM,HIROFUMI HINODE","SOLID ACID CATALYST PREPARATION FROM BAGASSE FLY ASH BASED ACTIVATED CARBON","VENICE 2010 Third International Symposium on Energy from Biomass and Waste","Proceedings VENICE 2010",,,,,2010,Nov.