M. M. Espitia Camacho, R. Ángel Montoya Báez, J. Robles, C. Barbosa, and C. Vergara, “Statistical model for estimation of leaf area in stevia rebaudiana bertoni in the mid Sinu valley”, Temas Agrarios, vol. 11, no. 2, pp. 45–51, Jul. 2006, doi: 10.21897/rta.v11i2.644.