Skahid Mahmood; Muhammad Arshad; Zahir Ahmad Zahir(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2002-02-06)
Muhammad Khalid; Muhammad Arshad; Azeem Khatid; Zahir Ahmad Zahir(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2001-08-01)
Azeem Khalid; Muhammad Arshad; d Zahir Ahmad Zahir(Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan, 2001-08-02)