Gatdula, D. (2001). LPG cylinder makers push for stiff penalties vs unscrupulous operators. Philippine Star.
Chicago Style (17. basım) AtıfGatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star 2001.
MLA (9th ed.) AtıfGatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star, 2001.
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