Sang-Woon. A History of Korean Science and Technology. NUS Press Pte Ltd.
Lua i Stíl Chicago (17ú heag.)Sang-Woon. A History of Korean Science and Technology. NUS Press Pte Ltd.
Lua MLA (9ú heag.)Sang-Woon. A History of Korean Science and Technology. NUS Press Pte Ltd.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.