@Stoori Hola . Acá hay dos publicaciones que te pueden servir:
http://www.fao.org/3/i2360s/i2360s.pdf
http://www.iiap.org.pe/archivos/publicaciones/publicacion_1484.pdf
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.