Muharrm AL-Bayati, H. J. . “Effect of Nitrogen and Organic Fertilization on Growth and Yield of Two Cabbage Varieties Brassica Oleracae Var. Capitata”. NTU Journal of Agriculture and Veterinary Science, vol. 1, no. 1, Sept. 2021, pp. 21-28, doi:10.56286/ntujavs.v1i1.123.