Kotagama, H. B., A. J. T. Al-Alawi, H. Boughanmi, S. Zekri, M. Mbaga, and H. Jayasuriya. “Economic Analysis Determining the Optimal Replanting Age of Date Palm”. Journal of Agricultural and Marine Sciences [JAMS], vol. 19, Jan. 2014, pp. 51-61, https://journals.squ.edu.om/index.php/jams/article/view/698.