Gatdula, D. (2001). LPG cylinder makers push for stiff penalties vs unscrupulous operators. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Gatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star 2001.
Lua MLA (9ú heag.)Gatdula, Donnabelle. "LPG Cylinder Makers Push for Stiff Penalties Vs Unscrupulous Operators." Philippine Star, 2001.
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