Choi, Ji-eun (June 23, 2011). 홍자매 "<최고의 사랑>은 땅에 붙인 이야기로 시작하고 싶었다" [Interview with the Hong Sisters]. 10Asia (in Korean). Archived from the original on March 20, 2016. Retrieved November 24, 2012.
Choi, Ji-eun (June 23, 2011). 홍자매 "<최고의 사랑>은 땅에 붙인 이야기로 시작하고 싶었다" [Interview with the Hong Sisters]. 10Asia (in Korean). Archived from the original on March 20, 2016. Retrieved November 24, 2012.