^"'하트어택' 이충현 감독 "이성경, 밝고 건강한 에너지에 놀라" ['Heart Attack' Director Lee Choong-Hyun "Lee Sung-kyung, surprised by the bright and healthy energy"]. newsis. October 5, 2020. Archived from the original on October 9, 2020. Retrieved October 5, 2020.
^Jeong Hee-yeon (September 15, 2022). "낭만닥터 김사부' 시즌3 내년 상반기 방송...한석규-안효섭-이성경 출연 [공식]" [Romantic Doctor, Teacher Kim' Season 3 to be broadcast in the first half of next year... Han Seok-gyu - Ahn Hyo-seop - Lee Sung-kyung [Official]] (in Korean). Sports Donga. Archived from the original on November 11, 2020. Retrieved September 15, 2022 – via Naver.
^Moon Ji-yeon (August 25, 2021). "[공식] 이성경·김영대, 기대작 '별똥별' 주인공 확정 ... 9월 촬영 돌입" [[Official] Lee Sung-kyung and Kim Young-dae, the main characters of the anticipated 'Shooting Star' confirmed ... Filming begins in September] (in Korean). Sports Chosun. Archived from the original on August 25, 2021. Retrieved August 25, 2021 – via Naver.
^Yoo, Da-yeon (February 11, 2024). 이성경, 박형식 前 썸녀로 특별출연!...박신혜 질투 유발한다('닥터슬럼프') [Lee Sung-kyung makes a special appearance as Park Hyeong-sik's former lover!...Makes Park Shin-hye jealous ('Doctor Slump')] (in Korean). Sports Seoul. Retrieved February 11, 2024 – via Naver.
^Yoon Hyo-jeong (April 21, 2022). "[단독] 이성경, 로맨스 한 번 더...'사랑이라 말해요' 주인공 발탁" [[Exclusive] Lee Sung-kyung, one more romance... Selected as the main character of 'Tell Me It's Love] (in Korean). News1. Archived from the original on April 21, 2022. Retrieved April 21, 2022 – via Naver.
^Woo, Da-bin (July 9, 2024). "[단독] 이성경, 뮤지컬 '알라딘' 자스민 공주 역 낙점" [[Exclusive] Lee Sung-kyung selected for the role of Princess Jasmine in musical ‘Aladdin’]. Hankookilbo (in Korean). Retrieved July 9, 2024 – via Naver.
^"'1919-2019, 기억록' 이성경, 최초 여성 독립운동가 윤희순을 기록하다" ["1919-2019, Memories: Lee Sung-kyung Records Yoon Hee-sun, the First Female Independence Activist."]. iMBC (in Korean). June 3, 2019. Retrieved July 18, 2024.
^"이성경, '로드 투 파리' 역도 박혜정 편 내레이션 "설레는 마음" [Lee Sung-kyung, narration of 'Road to Paris' weightlifting Park Hye-jung episode, "My heart flutters"]. Single List (in Korean). July 24, 2024. Retrieved July 24, 2024.