Amara, D. M. K., Sawyerr, P. A., Mansaray, S. D. and Kamanda, P. J. (2016) “Assessment of Soil Productivity Potentials in Hot Semi-Arid Northern Transition Zone of India using Riquier Index and GIS Techniques”, Asian Journal of Agriculture and Food Sciences, 4(1). Available at: https://ajouronline.com/index.php/AJAFS/article/view/2921 (Accessed: 29 April 2024).