Muqorobin, M., Z. Hisyam, and A. Setyanto. “BIG DATA FOR CLASSIFICATION OF COMMUNITY COMPLAINTS AGAINST PUBLIC SERVICES ON TWITTER”. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW, Vol. 5, no. 2, Sept. 2019, http://103.8.12.212:33180/unj/index.php/ijer/article/view/12468.