Ibrahim, Mosa, Hazhir Karimi, Yaseen Mustafa, and Mohammad Hassan. “Mapping Ecosystem Service: Challenges and Solutions”. Journal of Applied Science and Technology Trends 3, no. 02 (July 30, 2022): 53 - 63. Accessed May 13, 2024. https://www.jastt.org/index.php/jasttpath/article/view/172.