M. Zangmo, N. Powrel, P. Gayenden, and R. Khando, “Present Lighting Scenario in Bhutan”, zm, vol. 1, no. 1, pp. 79–84, Jun. 2013, Accessed: Jun. 30, 2025. [Online]. Available: http://103.133.216.217/index.php/zm/article/view/49