Singh RV, Sharma KC. Note on the Effect of Frequent Freshenings on Resin Yield from <I>Chil (Pinus roxburghii)</I>. Indian Forester [Internet]. 1974 Mar. 1 [cited 2025 Oct. 29];100(3):206-8. Available from: https://indianforester.co.in/index.php/indianforester/article/view/26848