M.E/SEM-1
- STATISTICS FOR ENVIRONMENTAL ENGINEERS June2012, Jan 2012, Jan2013
- ENVIRONMENTAL CHEMISTRY Jan 2012, Jan 2013
- PRINCIPLES & DESIGN OF PHY-CHE TREATMENT SYSTEM June 2012, Jan 2012, Jan 2013
- SOLID AND HAZARDOUS WASTE MANAGEMENT June 2012, Jan 2012, Nov 2012