^"風景區 – 富貴角". 台灣旅遊聯盟 (CTIN). Retrieved April 22, 2008.
^Richard Saunders (September 22, 2017). "Off the Beaten Track: Dongyin Island: The Northern Frontier". Taipei Times (in English and Chinese (Taiwan)). p. 2. Retrieved August 30, 2019. This point (or rather the Beigu Reef (北固礁) just offshore) constitutes the northernmost territory of the Matsu archipelago, and is certainly a fittingly majestic spot.
^記者盧賢秀,"北方三島小檔案""存档副本". Archived from the original on September 1, 2010. Retrieved August 30, 2010. 島嶼的最東端是台灣極東點,, Liberty Times,2010-8-30.
^05-19 臺灣島嶼面積 [Location and Area of Islands in Taiwan]. Ministry of the Interior (in Chinese (Taiwan) and English). Retrieved October 20, 2019. 縣市別 Locality 島嶼名稱 位置 Location 面積(平方公里) (1) 經度 緯度 Name of Islands Longitude Latitude Area (km2){...}宜蘭縣 Yilan County{...}赤尾嶼 Chiwei Isle 124°34′09〞~124°33′50〞 25°53′54〞~25°54′06〞 0.0609
^Joyce Jong-Wen Wann; Tso-Kwei Peng & Mei-Huey Wu (2000). "Taiwan"(PDF). In M. Ali (ed.). Dynamics of vegetable production, distribution and consumption in Asia. Shanhua, Tainan: Asian Vegetable Research and Development Center. pp. 379–415.