Hamal, J.P. and Chettri, M.K. 2017. AIR POLLUTION TOLERANCE INDEX OF SOME SELECTED GYMNOSPERM SPECIES ALONG THE ROAD SIDE OF KATHMANDU VALLEY, NEPAL. Ecoprint: An International Journal of Ecology. 24, (Dec. 2017), 13–19. DOI:https://doi.org/10.3126/eco.v24i0.20642.