Rehem, Bruna Carmo, et al. “Photosynthetic and Growth Responses of <i>Theobroma cacao< i> L. Clones to Waterlogging”. Journal of Tropical Agriculture, vol. 48, no. 2, Dec. 2010, pp. 17-22, https://jtropag.kau.in/index.php/ojs2/article/view/217.