Philippines. National Historical Institute. (1994). Historical markers: Regions V-XII. National Historical Institute.
Dyfyniad Arddull ChicagoPhilippines. National Historical Institute. Historical Markers: Regions V-XII. Manila: National Historical Institute, 1994.
Dyfyniad MLAPhilippines. National Historical Institute. Historical Markers: Regions V-XII. National Historical Institute, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.