Katigbak, T. (1998). Poor leadership becomes major economic concern. Philippine Star.
Chicagoスタイル(17版)引用形式Katigbak, Tony. "Poor Leadership Becomes Major Economic Concern." Philippine Star 1998.
MLA(9版)引用形式Katigbak, Tony. "Poor Leadership Becomes Major Economic Concern." Philippine Star, 1998.
警告: この引用は必ずしも正確ではありません.