Khattak, M. K. ., F. . Ullah, M. J. . Khattak, S. . Wahab, M. . Saeed, and I. A. Khan. “Effect of Tillage Practices on Chickpea Productivity in Rotation With Wheat under Rainfed Semi-Arid Environment: Effect of Tillage Practices on Chickpea Productivity”. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, vol. 55, no. 1, Mar. 2018, pp. 29-39, http://ppaspk.org/index.php/PPAS-B/article/view/220.