Awofolu, O. R. “Determination and Seasonal Variation of Heavy Metals in Algae and Sediments in Sewers from Industrial Areas in Lagos State, Nigeria”. Biological Sciences - PJSIR 48, no. 1 (February 14, 2005): 28–36. Accessed May 21, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1309.