2011年统计用区划代码和城乡划分代码:海安镇 (in Chinese). National Bureau of Statistics of the People's Republic of China. Archived from the original on November 28, 2012. Retrieved 2012-07-19.
stats.gov.cn
2011年统计用区划代码和城乡划分代码:徐闻县 (in Chinese). National Bureau of Statistics of the People's Republic of China. Retrieved 2012-07-19.
2011年统计用区划代码和城乡划分代码:海安镇 (in Chinese). National Bureau of Statistics of the People's Republic of China. Archived from the original on November 28, 2012. Retrieved 2012-07-19.