“Non-Destructive Determination of Photosynthetic Pigments in the Leaves of Castor Oil Plants - Doi: 10.4025 actasciagron.V34i3.13872”. Acta Scientiarum. Agronomy 34, no. 3 (dezembro 19, 2011): 325–329. Acesso em junho 7, 2026. https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13872.