Abasiekong, Beauty Omayeli, and Vincent Ndem Osabor. “Seasonal Effects on Nutrient and Bioactive Element Distributions in the Surface Sediments of Calabar River, Calabar, South-East Nigeria”. Faculty of Natural and Applied Sciences Journal of Basic and Environmental Research 2, no. 2 (March 31, 2025): 69–79. Accessed April 25, 2025. https://fnasjournals.com/index.php/FNAS-JBER/article/view/712.