1. Moving bed pressure gasification of some Indian coals;Krishnudu;Fuel Processing Technol.,1989
2. Moving Bed Gasification of Non-caking Indian Coals;CSIR,1989
3. Moving Bed Gasification of North Karanpura Coal for Power Generation through Integrated Gasification Combined Cycle Route;CSIR,1991
4. Coal gasification processes;Hebden,1981
5. Classification of coal;Rose,1945