Lee, H. (2012). Exploring the relationship among L1 writing, L2 writing, and L2 linguistic proficiency depending on L2 topic difficulty. Asia-Pacific Education Researcher.
Lua i Stíl Chicago (17ú heag.)Lee, Hee-Kyung. "Exploring the Relationship Among L1 Writing, L2 Writing, and L2 Linguistic Proficiency Depending on L2 Topic Difficulty." Asia-Pacific Education Researcher 2012.
Lua MLA (9ú heag.)Lee, Hee-Kyung. "Exploring the Relationship Among L1 Writing, L2 Writing, and L2 Linguistic Proficiency Depending on L2 Topic Difficulty." Asia-Pacific Education Researcher, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.