sharashy, omar. “Application of Shannon and Simpson Diversity Index to Study Plant Biodiversity on Coastal Rocky Ridges Habitats With Reference to Census Data in the Ras El-Hekma and Omayed Area on the Western Coastal Region of Egypt”. Journal of Pure & Applied Sciences, vol. 21, no. 1, Feb. 2022, pp. 41-45, doi:10.51984/jopas.v21i1.1578.