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Lua i Stíl Chicago (17ú heag.)Villegas, Bernardo Malvar. Guide to Economics for Filipinos. 3rd ed. Manila: Sinag-Tala, 1985.
Lua MLA (9ú heag.)Villegas, Bernardo Malvar. Guide to Economics for Filipinos. 3rd ed. Sinag-Tala, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.