Velasco, M. M. (2001). Review of inter-gov't power purchase deals urged. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Velasco, Myrna M. "Review of Inter-gov't Power Purchase Deals Urged." Manila Bulletin 2001.
Lua MLA (9ú heag.)Velasco, Myrna M. "Review of Inter-gov't Power Purchase Deals Urged." Manila Bulletin, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.