1. Sink float tests of coal: sampling and washability data validation issues;Choudhury,2012
2. Sampling—an important aspect of system design;Chaudhary,2012
3. Gazette notification - Vide Notification G.S.R. 02(E), Ministry of environment& forests, 2014.
4. Options for washability analysis of coal—a literature review;Galvin;Coal Prep.,2006
5. Code of practice for float and sink analysis of coal,2000