Laird, MC, and CL Griffiths. “Present Distribution and Abundance of the Introduced Barnacle <i>Balanus glandula</I> Darwin in South Africa”. African Journal of Marine Science 30, no. 1 (June 25, 2008): 93–100. Accessed November 8, 2026. https://www.ajol.info/index.php/ajms/article/view/33516.