Gatdula, D. (2001). LPG cylinder makers push for stiff penalties vs unscrupulous operators. Philippine Star.
Chicagoスタイル(17版)引用形式Gatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star 2001.
MLA(9版)引用形式Gatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star, 2001.
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