Wangmo, Tshering, Thuenzang Chophel, Tenzin Lhamo, Karma Yuden Dorji, and Purna B. Samal. 2015. “Parking Space Indicator”. Zorig Melong | A Technical Journal of Science, Engineering and Technology 2 (1): 78-82. http://103.133.216.217/index.php/zm/article/view/93.