A GRAMMATICAL ERROR ANALYSIS OF STUDENTS’ WRITING DESCRIPTIVE TEXT AMONG THE EIGHT GRADE STUDENTS OF SMP NEGERI 1 SEWON BANTUL IN ACADEMIC YEAR 2014/2015 - Pembimbing: Robiasih, Hasti,Pembimbing: Yulia, Yuyun,MELATI, MUTIFA, SRI (Prodi Bahasa Inggris, FKIP, UST, 2015)