Mathauda, G. S. “Influence of Method of Fixing Resin Lips on Resin Yields from <I>Chir< I> Pine (<I>Pinus roxburghii< I> Sargent)”. Indian Forester, vol. 86, no. 1, Jan. 1960, pp. 18-20, doi:10.36808/if/1960/v86i1/24398.