Menon, Jalaja S., et al. “Stimulation of Seed Germination in White Flowered Leadwort (<i>Plumbago zeylanica< I> L.)”. Journal of Tropical Agriculture, vol. 39, no. 2, Oct. 2006, pp. 180-1, https://jtropag.kau.in/index.php/ojs2/article/view/55.