Arya, R. S., and M. S. Haque. “Air Layering in <I>Pinus patula< I> Schi. And Cham. And <I>Pinus caribaea< I> Morelet. Var. <I>Hondurensis< I>”;. Indian Forester, vol. 108, no. 1, Jan. 1982, pp. 66-68, doi:10.36808/if/1982/v108i1/10790.