Indon, R. M. (1999). The Informal sector. IN Commentary [column]. Philippine Daily Inquirer.
Chicago Style aipamenaIndon, Reginald M. "The Informal Sector. IN Commentary [column]." Philippine Daily Inquirer 1999.
MLA aipamenaIndon, Reginald M. "The Informal Sector. IN Commentary [column]." Philippine Daily Inquirer, 1999.
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