López-Báez, W. 2018. “EFFECTS OF LIMING ON ACID SOIL CULTIVATED WITH COFFEE (Coffea Arabica L.) IN THE BIOSPHERE RESERVE OF EL TRIUNFO, CHIAPAS, MEXICO”. Agro Productividad 11 (4). https://revista-agroproductividad.org/index.php/agroproductividad/article/view/270.