Analysis of information sources in references of the Wikipedia article "Kim Ung-yong" in Turkish language version.
South Korea's Kim Ung-Yong, a 14-year-old prodigy who was speaking four languages and solving integral calculus problems at age four, is said to tip the mental scales at 210, worth a mention in the Guinness Book of World Records.
South Korea's Kim Ung-Yong, a 14-year-old prodigy who was speaking four languages and solving integral calculus problems at age four, is said to tip the mental scales at 210, worth a mention in the Guinness Book of World Records.