Chŏn, Sang-un. A history of Korean science and technology / Jeon Sang-woon ; translated by Robert Carrubba and Lee Sung Kyu. - Singapore : NUS Press, 2011. - xiv, 433 p. : ill. (some col.), maps (some col.) ; 24 cm. ISBN: 9789971694029 RM106.88 Subjects--Topical Terms: Science--History.--KoreaTechnology--History.--Korea Subjects--Geographic Terms: Korea--Civilization.