Mani Raj Paul. QR CODE BASED SYSTEM FOR CONTROLLING LIGHT USING . EPRA International Journal of Multidisciplinary Research (IJMR) [Internet]. 2022 Nov. 16 [cited 2024 May 17];8(11):140-2. Available from: http://www.eprajournals.net/index.php/IJMR/article/view/1105