K. S. Rajab and A. O. Esmail, “ ROLE OF ION PAIRS AND ACTIVITY IN ESTIMATION OF IONIC STRENGTH FROM ELECTRICAL CONDUCTIVITY OF IRRIGATION WATER”, Iraqi J. Agric. Sci., vol. 54, no. 3, pp. 755–767, Jun. 2023, doi: 10.36103/ijas.v54i3.1758.