(2001). Constancio de Guzman, composer of Bayan Ko and Maalaala Mo Kaya, honored. Philippine Daily Inquirer.
Chicago Style aipamena"Constancio De Guzman, Composer of Bayan Ko and Maalaala Mo Kaya, Honored." Philippine Daily Inquirer 2001.
MLA aipamena"Constancio De Guzman, Composer of Bayan Ko and Maalaala Mo Kaya, Honored." Philippine Daily Inquirer, 2001.
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