Zannat, T., F. F. Meem, R. S. Promi, U. Q. Poppy, and M. Rahman. “Soil Fertility and Leaf Nutrient Status of Litchi Orchard Sites”. Dhaka University Journal of Biological Sciences, vol. 30, no. 2, July 2021, pp. 141-9, doi:10.3329/dujbs.v30i2.54640.