Hamal, Jaya Prakash, and Mukesh Kumar Chettri. “AIR POLLUTION TOLERANCE INDEX OF SOME SELECTED GYMNOSPERM SPECIES ALONG THE ROAD SIDE OF KATHMANDU VALLEY, NEPAL”. Ecoprint: An International Journal of Ecology 24 (December 5, 2017): 13–19. Accessed December 3, 2024. https://nepjol.info./index.php/ECO/article/view/20642.