Dey, Shouvik, and Swapan Bhattacharya. “Formal Software Design Technique – A Pattern Based Approach”. INFOCOMP Journal of Computer Science 9, no. 2 (June 1, 2010): 27–38. Accessed October 5, 2024. http://177.105.60.18/index.php/infocomp/article/view/300.