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Lua i Stíl Chicago (17ú heag.)Catindig, Tristan A. The National Internal Revenue Code of 1997 [effective January 1, 1998]. Pasig City: Catindig Tiongco & Nibungco, 1998.
Lua MLA (9ú heag.)Catindig, Tristan A. The National Internal Revenue Code of 1997 [effective January 1, 1998]. Catindig Tiongco & Nibungco, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.