Puri, Y. N. “Natural Decay Resistance Of Indian Timbers.III. Heartwood Extractives of Sal (<I>Shorea robusta< I> Gaerin.) and Teak (<I>Tectona grandis< I> L.F.)”. Indian Forester, vol. 93, no. 7, July 1967, pp. 447-54, doi:10.36808/if/1967/v93i7/25635.