C . Swaminathan, and V.M. Srinivasan. “SEEDLING INVIGORATION THROUGH PLANT GROWTH SUBSTANCES IN TEAK (<em>TECTONA</em> <em>GRANDIS</Em>)”. Journal of Tropical Forest Science (JTFS), vol. 8, no. 3, Mar. 1996, pp. 310-6, https://jtfs.frim.gov.my/jtfs/article/view/1755.