P. Bhattacharjee and L. K. Vashishtha,"Optimal Design of a Bengali Virtual Keyboard seeking improved user perception for a better text entry rate (Human Computer Interaction)", in International Conference on Advances in Information Technology – AIT 2013, pp.135-139, IRED 2013, 10.15224/978-981-07-5939-1-53 Inproceedings
P. Bhattacharjee, A. Das, M. Sarma, and S. Bhattacharjee,"Design of optimal virtual keyboard in Bengali (human computer interaction)", in Second National Conference on Computing and Systems, pp.163-171, SPS Education India Pvt. Ltd. 2012 Inproceedings