Aumbrin Tabasam; Safdar Ali; Rifat Hayat'(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2002-02-09)
Shahzada Sohail Ijaz; Safdar AH; Rifat Hayat'(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2002-02-01)