"득점묘기를 가진 재능있는 공격수/김유성 4.25체육단 남자축구선수" [Talented striker with scoring skills/Kim Yu-seong, 4.25 Sports Team male soccer player]. chosonsinbo.com (in Korean). 10 October 2017. Retrieved 8 October 2024. (subscription required)
"상대팀 방어진에 《위협적인 인물》로 간주되고있는 공격수" [An attacker who is considered a "threatening figure" to the opposing team's defence.]. kcna.co.jp (in Korean). 9 September 2017. Retrieved 8 October 2024.
kookje.co.kr
"[동아시안컵 한국 VS 북한] 요주의 선수는 '김유성'...북한 라인업은?" [[East Asian Cup Korea VS North Korea] Player to watch is 'Kim Yu-seong'... What is North Korea's lineup?]. kookje.co.kr (in Korean). 12 December 2017. Retrieved 8 October 2024.
"[동아시안컵] 日 "북한 주요 경계대상은 김유성·안병준"" [[East Asian Cup] Japan: "North Korea's Key Targets of Vigilance Are Kim Yu-song and Ahn Byong-jun"]. spotvnews.co.kr (in Korean). 3 December 2017. Retrieved 8 October 2024.
Feldmann, Franz (31 August 2015). "FCRJ holt gegen überlegene Zürcher einen Punkt" [FCRJ gets a point against superior Zurich team]. zsz.ch (in German). Retrieved 8 October 2024. (subscription required)