THE EFFECTIVENESS OF USING COMPUTER-BASED INSTRUCTION (CBI) OF SIMULATION MODEL TYPE TO IMPROVE STUDENTS’ ABILITY IN WRITING NEWS ITEM TEXT AT THE TENTH GRADE STUDENTS OF SMA N 3 PURWOREJO IN THE ACADEMIC YEAR OF 2012/2013 - setyaningrum, nur khomariyah (Pendidikan Bahasa Inggris, 2014)