Okelo, N. B. “ON BOUNDEDNESS AND COMPLETE POSITIVITY OF MAPS ON BANACH ALGEBRAS”. Journal of Global Research in Mathematical Archives(JGRMA) 4, no. 5 (October 2, 2017): 08–11. Accessed May 9, 2025. https://www.jgrma.com/index.php/jgrma/article/view/333.