NOVIA SRI INDAH P : The Effect of Using Cooperative Learning NHT (Numbered Head Together) Type on The Students' Reading Achievement (An experimental study of the second grade students of SMP Negeri 6 Tegal on Academic Year 2009/2010), A Thesis English Education Department, Teacher Training and Education Faculty, Pancasakti University Tegal. First advisor : Drs.Rofiudin, M.Hum, Second advisor : …