Villanueva, R. . E. (2021). PAF jets intercept unknown aircraft entering Phl airspace. Philippine Star.
Dyfyniad Arddull ChicagoVillanueva, Ralph Edwin. "PAF Jets Intercept Unknown Aircraft Entering Phl Airspace." Philippine Star 2021.
Dyfyniad MLAVillanueva, Ralph Edwin. "PAF Jets Intercept Unknown Aircraft Entering Phl Airspace." Philippine Star, 2021.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.