Medina Saavedra, Tarsicio, Gabriela Arroyo Figueroa, and Peña Caballero Vicente. 2018. “Chromatography of Pfaiffer in the Analysis of Soils of Productive Systems”. Revista Mexicana De Ciencias Agrícolas 9 (3): 665-73. https://doi.org/10.29312/remexca.v9i3.1223.