Assessment of Soil Quality of Taluka Thari Mirwah, District Khairpur, Sindh, Pakistan oleh Shafqat Hussain Shar, Abdul Razak Mahar, Inyatullah Rajpar, Mumtaz Ali Saand, Ameer Ahmed Mirbahar, Khalil Ahmed Ansari, Rafat Saeed, Muzafar Hussain Sirohi