"알고있지만, OST Part.1". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.2". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.3". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.4". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.5". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.6". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.7". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
"알고있지만, OST Part.8". Melon (dalam bahasa Korea). Warner Music. Diakses tanggal August 14, 2021.
mk.co.kr
"알고있지만: 시청률" [Nevertheless: ratings]. Naver. Diakses tanggal July 11, 2021.
Jin, Hyang-hee (June 20, 2021). '알고있지만' 송강X한소희, 운명적 첫 만남→'키스 1초 전' 엔딩 [(First episode 2.2%) ‘I Know But’ Song Kang X Han So-hee, fateful first meeting → ‘1 Second Before Kiss’ ending]. Maeil Business Newspaper (dalam bahasa Korea). Diakses tanggal June 20, 2021.
Ha Su-jeong (July 22, 2021). "서정연, '알고있지만' 특별 출연..아들 감정 잡아주는 송강母 [공식]" [Seo Jeong-yeon, special appearance on 'I Know'...]. Naver (dalam bahasa Korea). OSEN. Diakses tanggal July 22, 2021.
"알고있지만". Naver Webtoon (dalam bahasa Korea). Diakses tanggal April 21, 2021.
program.naver.com
"알고있지만: 시청률" [Nevertheless: ratings]. Naver. Diakses tanggal July 11, 2021.
Jin, Hyang-hee (June 20, 2021). '알고있지만' 송강X한소희, 운명적 첫 만남→'키스 1초 전' 엔딩 [(First episode 2.2%) ‘I Know But’ Song Kang X Han So-hee, fateful first meeting → ‘1 Second Before Kiss’ ending]. Maeil Business Newspaper (dalam bahasa Korea). Diakses tanggal June 20, 2021.