Opeña, M. L. R. (1998). The conversion of Busali Farm: Its political implications to the province of Biliran.
Lua i Stíl Chicago (17ú heag.)Opeña, Mario Lydinno R. The Conversion of Busali Farm: Its Political Implications to the Province of Biliran. 1998.
Lua MLA (9ú heag.)Opeña, Mario Lydinno R. The Conversion of Busali Farm: Its Political Implications to the Province of Biliran. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.