^Philippine Census, 2000. Table 11. Household Population by Ethnicity, Sex and Region: 2000
參考文獻
Lobel, Jason William, Wilmer Joseph S Tria, and Jose Maria Z Carpio. 2000. An satuyang tataramon / A study of the Bikol language. Naga City, Philippines: Lobel & Tria Partnership, Co.: Holy Rosary Minor Seminary.