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Dyfyniad Arddull Chicago"UPM Chancellor to Address 90th Commencement Exercises." Philippine Star 1999.
Dyfyniad MLA"UPM Chancellor to Address 90th Commencement Exercises." Philippine Star, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.