Lua APA (7ú heag.)

Gatdula, D. (1998). SSS net income up 19.4% to P8 B in H1. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Gatdula, Donnabelle. "SSS Net Income Up 19.4% to P8 B in H1." Philippine Star 1998.

Lua MLA (9ú heag.)

Gatdula, Donnabelle. "SSS Net Income Up 19.4% to P8 B in H1." Philippine Star, 1998.

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