1. J. W. Leonard III, Coal preparation, Society of Mining, Metallurgy and Exploration Inc., Littleton, CO (USA), 1991.
2. F. F. Aplan, “The historical development of coal flotation in the United States”, Advances in flotation technology, pp. 269-287,1999.
3. Z. Xu, J. Liu, J. W. Choung, and Z. Zhou, “Electrokinetic study of clay interactions with coal in flotation”, International Journal of Mineral Processing, vol. 68, pp. 183-196, 2003.
4. H. A. Taner ve V. Önen, “Killerin pülp ortamındaki davranışı ve flotasyona etkisi”, Madencilik Dergisi, Cilt 55, ss 45-51, 2016.
5. Y. Xing, X. Xu, X. Gui, Y. Cao, and M. Xu, “Effect of kaolinite and montmorillonite on fine coal flotation”, Fuel, vol. 195, pp. 284-289, 2017.