Indon, R. M. (1999). The Informal sector. IN Commentary [column]. Philippine Daily Inquirer.
Dyfyniad Arddull ChicagoIndon, Reginald M. "The Informal Sector. IN Commentary [column]." Philippine Daily Inquirer 1999.
Dyfyniad MLAIndon, Reginald M. "The Informal Sector. IN Commentary [column]." Philippine Daily Inquirer, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.