ผลต่างระหว่างรุ่นของ "เตรนอูร์บาโน"

* [http://www.dtop.gov.pr/transporte_urbano/det_content.asp?cn_id=6 Tren Urbano] –- Official Website {{es icon}}

* [http://www.endi.com/XStatic/endi/template/columna.aspx?c=226441 Urge darle vida al Tren Urbano] –- Editorial de El Nuevo Día {{es icon}}

* [http://www.urbantransport-technology.com/projects/sanjuan/ Urban Transport Technology] –- San Juan Tren Urbano Heavy Rail System, Puerto Rico

*[http://www.celsoportela.com/html/d_web/artepublico/html_espanol/ambitos/tren_urbano/index.htm Puerto Rico Public Art Project –- Tren Urbano] – Photos and information related to the artwork located on each of the train route's stations.

* [http://enrieles.com/ En Rieles] –- Campaign to promote San Juan Tram {{es icon}}