The purpose of this research is describe the two following points. first is to describe structural characteristic of text exposition student work. second is to desribe linguistic exposition. The students are PPBSI JBSID FBS UNP. https://xdtulbovd2pw.bloginwi.com/68598397/glass-fiber-catalysts-for-selective-catalytic-reduction-of-nitrogen-oxides-by-co-and-hydrocarbons