Al-Aa’reji,J. M. A. , and Perot,J. S. K. . "Effect of foliar application of Citric and Gibberellic acid (GA3) on growth and fruiting of apricot trees "Prunus armeniaca L." cv. Royal", Kirkuk University Journal for Agricultural Sciences (KUJAS), 8, 4, 2017, 64-78. doi: 10.58928/ku17.08406