↑Kim Soo-jin (March 11, 2021). "조여정 김지수 하준, '하이클래스' 출연 [공식]" [Jo Yeo-jeong, Kim Ji-soo, Ha-jun to appear in 'High Class' [Official]]. Star News (به کرهای). Retrieved March 11, 2021.
↑Yoo Jeong-min (November 22, 2022). "약한영웅' 나철→유수빈, 시리즈 완성도 높인 숨은 공신들" ['Weak Hero' Na Cheol → Yoo Soo-bin, hidden contributors who improved the series' completeness]. iMBC (به کرهای). Retrieved November 22, 2022 – via Naver.
