Samuel, Kasereka Masivi, and Ravi Shankar Shukla. “CHALLENGES TO DESIGN A DISTRIBUTED DATABASE USING UML AND MERISE”. International Journal of Advanced Computer Technology 7, no. 6 (December 25, 2018): 01-14. Accessed August 19, 2019. http://ijact.org/index.php/ijact/article/view/1.