Aguinaldo, S. S. (1999). Tax underground economy -- Erap. Manila Times.
Chicago Style (17th ed.) CitationAguinaldo, Sandra S. "Tax Underground Economy -- Erap." Manila Times 1999.
MLA (9th ed.) CitationAguinaldo, Sandra S. "Tax Underground Economy -- Erap." Manila Times, 1999.
Warning: These citations may not always be 100% accurate.