ABSTRACT MAULINA, ISNAENI. 1607501782. 2012. The Effect of Using Collaborative Writing Strategy on Students’ Writing Achievement (An Experimental Study of the Third Semester Students of English Department of University of Pancasakti Tegal in the Academic Year of 2011/2012). Thesis strata 1. Teacher Training and Education Faculty of Pancasakti University Tegal. The first advisor is Dra.Hj.…