Oplas, B. J. (2006). Why income taxes can be abolished. Philippine Collegian.
Chicagoスタイル(17版)引用形式Oplas, Bienvenido Jr. "Why Income Taxes Can Be Abolished." Philippine Collegian 2006.
MLA(9版)引用形式Oplas, Bienvenido Jr. "Why Income Taxes Can Be Abolished." Philippine Collegian, 2006.
警告: この引用は必ずしも正確ではありません.