Thakur, M. L. “The Apical Tibial Spur Formula in the Termite Genus <I>Odontotermes< I> Holmgren (Isoptera : Termitidae: Macrotermitinae)”. Indian Forester, vol. 101, no. 11, Nov. 1975, pp. 706-8, doi:10.36808/if/1975/v101i11/27052.