1. G. Atesok and G. anal (Eds.)Coal Technology and Utilization Seminar I, Turkish Mining Development Foundation Press, Didim , Aydin , Turkiye , Oct. , 1991 , p. 330 .
2. M. S. Celik and P. Somasundaran ,Coal: Resources, Properties, Utilization and Pollution., (Ed.) O. Kural , Kurtis Press, Istanbul , Turkiye , Ch. 20, pp. 253 – 269 ( 1994 ).
3. Desulfurization of Coals by High-Intensity High-Gradient Magnetic Separation: Conceptual Process Design and Cost Estimation
4. The smokeless fuel — properties and testing methodology