Kayastha, Durgendra Man, Raja Ram Chhatkuli, and Jagat Raj Paudel. “Assessment of Accuracy of IKONOS Image Map, Traditional Orthophoto Map and Conventional Line Map of Kathmandu Valley: A Pilot Study”. Journal on Geoinformatics, Nepal 3, no. 1 (May 27, 2004): 49–51. Accessed July 16, 2024. https://www.nepjol.info/index.php/NJG/article/view/51450.