Rahman, Abdel, Mua’d Abdul, Munir Turk, and Mohsen Al- Mahmoud. “Effect of Plant Density and Nitrogen Rate on Essential Oils of Marjoram under Mediterranean Conditions”. Biological Sciences - PJSIR 50, no. 6 (December 9, 2007): 383–388. Accessed November 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1058.