Senekal, Burgert A., and Karlien Stemmet. “The South African Banking Director Network: An Investigation Into Interlocking Directorships Using Social Network Analysis (SNA)”. International Business & Economics Research Journal (IBER) 13, no. 5 (August 23, 2014): 963-980. Accessed August 23, 2020. https://clutejournals.com/index.php/IBER/article/view/8765.