M. L. da S. Marques, J. M. I. de Jesus, W. M. dos Santos, J. W. G. Silva, A. L. da S. Martins, and V. S. Marques, “AGRONOMIC EFFICIENCY OF FERTILIZERS BASED ON HUMUS, ROCK POWDER, AND MINERALS ON SOYBEAN YIELD IN PARAGUAY-PY”, Rev. Agric. Neotrop., vol. 7, no. 3, pp. 90–96, Sep. 2020.