Dissanayake, C.; Peiris, P.; Senevirathne, D.; Wijesooriya, K.; Rupasinghe, T. D.; Liyanaarachchi, N.
(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
The reception of a printed bill has been in global use as the proof of a transaction. Originating as a handwritten bill, the transaction billing has evolved with the advent of printers and computers, and are now an ...