Thiruchelvam, V., A. Shaka Mughisha, M. Shahpasand, and M. Bamiah. “Blockchain-Based Technology in the Coffee Supply Chain Trade: Case of Burundi Coffee”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 3-2, Sept. 2018, pp. 121-5, https://jtec.utem.edu.my/jtec/article/view/4722.