Gonzales, I. C. (2020). Villar, Razon among world’s richest 1,000. Philippine Star.
Chicago Style (17. basım) AtıfGonzales, Iris Cecilia. "Villar, Razon Among World’s Richest 1,000." Philippine Star 2020.
MLA (9th ed.) AtıfGonzales, Iris Cecilia. "Villar, Razon Among World’s Richest 1,000." Philippine Star, 2020.
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