Oyku Bilgin, Research Assist. Sadiye Kantarci. INVESTIGATION OF UNDERGROUND LIGNITE COALS WASHABILITY IN TURKEY/MANISA- SOMA -KARANLIKDERE LOCATION. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining, 2017, pp. 865-874. https://doi.org/10.5593/sgem2017/11/s04.110