Aditya Kumar, Shipra Saraswat, Saurabh Singh, Geetika Srivastava, & Sachchidanand Shukla. (2018). Laser Security System Using IOT. Journal of International Academy of Physical Sciences, 22(2), 161–168. Retrieved from https://www.iaps.org.in/journal/index.php/journaliaps/article/view/133