Swatha V S & Sathian K K. (2015). Improvement of purification system for roof water harvesting. Department of land and water resources and conservation engineering, Kelappaji college of agricultural engineering and technology.

Swatha V S a Sathian K K. Improvement of Purification System for Roof Water Harvesting. Tavanur: Department of land and water resources and conservation engineering, Kelappaji college of agricultural engineering and technology, 2015.

Swatha V S a Sathian K K. Improvement of Purification System for Roof Water Harvesting. Department of land and water resources and conservation engineering, Kelappaji college of agricultural engineering and technology, 2015.