Kumbhar, M. I., S. A. Sheikh, A. H. Soomro, and A. A. Khooharo. “Sustainable Agricultural Practices As Perceived by Farmers in Sindh Province of Pakistan”. Journal of Basic & Applied Sciences, vol. 8, no. 2, July 2012, pp. 309-14, doi:10.6000/1927-5129.2012.08.02.12.