P. Madhuvani, M. Vijaya Kumar G.V. Lakshmi and. 2014. “Appraisal of Soil Fertility Status in Salt-Affected Soils of Ongole Division, Prakasam District, Andhra Pradesh”. Journal of the Indian Society of Soil Science 61 (4). https://epubs.icar.org.in/index.php/JISSS/article/view/37752.