Bouhia, Youness, et al. “Effect of the Co-Application of Olive Waste-Based Compost and Biochar on Soil Fertility and Zea Mays Agrophysiological Traits”. International Journal of Recycling of Organic Waste in Agriculture, vol. 10, no. 2, May 2021, https://doi.org/10.30486/ijrowa.2021.1906342.1115.