BG, Harish and Hussain B, Md Irshad . "DIGITAL SIGN BOARD -A transpiring communication technology". OER Commons. Institute for the Study of Knowledge Management in Education, 25 Jul. 2016. Web. 27 Dec. 2024. <https://oercommons.org/authoring/15048-digital-sign-board-a-transpiring-communication-tec>.
BG, H., & Hussain B, M. (2016, July 25). DIGITAL SIGN BOARD -A transpiring communication technology. OER Commons. Retrieved December 27, 2024, from https://oercommons.org/authoring/15048-digital-sign-board-a-transpiring-communication-tec.