Yamsuan, B. R. S. (2003). Why does GSIS collect more moey from membeers when it has billions to spare? Philippine Star.
Παραπομπή σε μορφή Chicago (17η εκδ.)Yamsuan, Brian Raymund S. "Why Does GSIS Collect More Moey from Membeers When It Has Billions to Spare?" Philippine Star 2003.
Παραπομπή σε μορφή MLA (9th εκδ.)Yamsuan, Brian Raymund S. "Why Does GSIS Collect More Moey from Membeers When It Has Billions to Spare?" Philippine Star, 2003.
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