|• Revised Romanization||Samkak dong|
|• McCune–Reischauer||Samkak dong|
- "삼각동 (Samgak-dong 三角洞)" (in Korean). Retrieved 2008-05-09.
- "Chronicle of Beopjeong-dong and Haengjeong-dong" (in Korean). Guro-gu Official website.
- "Mapo Information". The chart of Beopjeong-dong assigned by Haengjeong-dong (행정동별 관할 법정동 일람표) (in Korean). Mapo-gu Official website.
- Jung-gu Official site in English
- (in Korean) Jung-gu Official site
- (in Korean) Jung-gu Tour Guide from the Official site
- (in Korean) Status quo of Jung-gu
- (in Korean) Resident offices and maps of Jung-gu
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