Al-Zubaidy, Khalid Mohammed Dawood, et al. “Variances, Correlations and Path Coefficient Analysis for Half Diallel Crosses in Maize (Zea Mays L.) and Its Effects by Plant Spaces: خالد محمد داؤد الزبيدي1 احمد هواس عبدالله أنيس2 داؤد سلمان مدب العبيدي3 محمد عبد حرجان الجنابي4”. Journal of Kerbala for Agricultural Sciences, vol. 5, no. 5, Mar. 2018, pp. 791-06, doi:10.59658/jkas.v5i5.670.