Leghari, Naimatullah, 		Ali, Amanat, AND 		Mangrio, Munir Ahmed.
" Relative Efficiency of Different Tillage Practices and Their Effect on Soil Physical Properties under Semi-Arid Climate of Tandojam, Pakistan" <em>Mehran University Research Journal of Engineering and Technology</em> [Online], Volume 35 Number 2 (1 July 2016)