Sopiah, S. “Writing Compare and Contrast Essay : An Error Analysis in Punctuation ( A Case Study at Nasional Pasim University, Bandung)”. Jurnal Sastra - Studi Ilmiah Sastra, Vol. 9, no. 1, July 2019, pp. 19-28, http://45.118.112.109/ojspasim/index.php/sastra/article/view/119.