V. Vishnu Sai Varma, M. S. Koushik, Dr. P V Rama Raju, G. Naga Raju, T. Naga Pallavi, Y. Harika,. “Digital Notice Board Using Raspberry PI”. International Journal of Advanced Science and Technology 29, no. 3 (March 5, 2020): 4429- 4437. Accessed March 29, 2024. http://sersc.org/journals/index.php/IJAST/article/view/5332.