Souza, G.F.D’, N. Rajeswari, and H.N. Ramesh Babu. 2011. “Influence of Rootstock Scion Combinations on Morpho-Physiological Traits in Coffee”. Journal of Plantation Crops 39 (3):351-57. https://updatepublishing.com/journal/index.php/JPC/article/view/5916.