N. Boonkwang and T. Boonphakdee, “Sources and Distribution of Organic Matter in Coastal Area of Muang Chonburi District, Eastern Thailand: Using Carbon and Nitrogen Stable Isotopes: 10.32526/ennrj/20/202100219”, Environ. Nat. Resour. J., vol. 20, no. 4, pp. 348–358, May 2022.