Estupigan, R. (1999). Bringing the best of Albay: To the country and to the world. Manila Bulletin.
Chicago-viite (17. p.)Estupigan, Ruth. "Bringing the Best of Albay: To the Country and to the World." Manila Bulletin 1999.
MLA-viite (9. p.)Estupigan, Ruth. "Bringing the Best of Albay: To the Country and to the World." Manila Bulletin, 1999.
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