Prieto-Benavides, O. O., C. E. Blezaca-Pinargote, W. F. Mora-Silva, F. R. Garcés-Fiallos, F. A. Sabando-Ávila, and P. E. Cedeño-Loja. “Identification of Arbuscular Mycorrhizal Fungi in Cocoa Agroforestry Systems in the Ecuadorian Humid Tropics”. Agronomía Mesoamericana, vol. 23, no. 2, Dec. 2012, pp. 233-9, doi:10.15517/am.v23i2.6482.