Sher Muhammad Malik, et al. “Sustainability of Subsistence Livelihoods of Agro-Pastoralists in Changing Socioeconomic Environment of Cholistan Desert-Pakistan”. Pakistan Journal of Commerce and Social Sciences, vol. 11, no. 3, Sept. 2017, pp. 1100-33, https://jes.ac.pk/index.php/jes/article/view/311.