Rivera, L. E., and M. R. Goyal. “Mulch Types on Soil Temperature at Varying Depths in Drip Irrigated Summer and Winter Peppers”. The Journal of Agriculture of the University of Puerto Rico 69, no. 1 (January 1, 1985): 121–123. Accessed March 28, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/7334.