IQBAL AHMAD; Abbasi, M. Kaleem; Ghulam Rasool(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2002-01-01)
S. Iqbal Ahmad; Abbasi, M. Kaleem; Ghulam Rasool(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2002-02-04)