Pazzibugan, D. Z. (1999). Gloria's PR owns new Cha-cha drive. Philippine Daily Inquirer.
Tohutoru Kātū Chicago (17th ed.)Pazzibugan, Dona Z. "Gloria's PR Owns New Cha-cha Drive." Philippine Daily Inquirer 1999.
Tohutoro MLA (9th ed.)Pazzibugan, Dona Z. "Gloria's PR Owns New Cha-cha Drive." Philippine Daily Inquirer, 1999.
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