“Effect Of Using Some Organic Materials and Spraying With Citric Acid on the Yield and Fruits Quality of Clementine Mandarin Trees Grown in Calcareous Soil”. 2022. Latakia University Journal -Biological Sciences Series 44 (2): 55-70. https://journal.latakia-univ.edu.sy/index.php/bioscnc/article/view/12394.