1. D. Mohan, R.K. Bhandari, (1978) Black Cotton soil in India, Vol.11, No.26, Geotechnical Engineering Magazine, Japan Geotechnical Society, Japanese.
2. Codes, Indian Standard. “Classification and identification of soils for general engineering purposes, (IS: 1498)” Bureau of Indian Standards, New Delhi (1970).
3. Seed, H.B., Woodward, R.G. and Lundgren, R., (1962), Prediction of Swelling Potential for compacted clays. Proceedings American Society of Civil Engineers Journal of Soil Mechanics and Foundation Engineering, Volume88, No.SM3, p53–87.
4. Geological Survey of India, Geomorphological Map of India (1:2,000,000), First Edition, 2002
https://commons.wikimedia.org/wiki/File:India_climatic_zone_map_en.svg#
.