Tshering, Dawa, Dawala Dawala, and Tshewang Dorji. “GSM BASED ELECTRONIC NOTICE BOARD”. Zorig Melong- A Technical Journal of Science, Engineering and Technology 3, no. 1 (December 22, 2016): 1–4. Accessed December 4, 2024. https://journal.cst.edu.bt/index.php/zm/article/view/4.