Nurdiansah, Nofrianto Ade. 2018. 1614500041 : The Effectiveness of Applying Group Investigation Technique in the Teaching of Writing for the Eighth-Grade Students of Junior High School (An Experimental Research at SMP Negeri 4 Wanasari Brebes in the Academic Year of 2017/2018). Thesis. English Education. Teacher Training and Education Faculty. Pancasakti University Tegal. First Advisor Drs. J.C…