Kalidas, Shakeel, Douglas Mbululu, and Chimwemwe Chipeta. “Changing Patterns In The Day-Of-The-Week Effects In African Stock Markets”. International Business & Economics Research Journal (IBER) 12, no. 10 (September 30, 2013): 1157-1174. Accessed September 5, 2020. https://clutejournals.com/index.php/IBER/article/view/8128.