Joo, H. (2014). Lullaby for Leo: For violin and piano ; (2014) / Hyung-ki Joo. Universal Ed..
Lua i Stíl Chicago (17ú heag.)Joo, Hyung-ki. Lullaby for Leo: For Violin and Piano ; (2014) / Hyung-ki Joo. Wien: Universal Ed., 2014.
Lua MLA (8ú heag.)Joo, Hyung-ki. Lullaby for Leo: For Violin and Piano ; (2014) / Hyung-ki Joo. Universal Ed., 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.