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KEYWORD_EN:middle-aged women 4 result(s) found
 
1. Development of a Thin Layer Chromatography Experimental Kit for Middle School Students

Jae Jeong Ryoo;Won-Kyu Park;
Journal of the Korean Chemical Society, vol. 47, iss. 4, 2003, pp. 401-411
 
2. An Analysis of Concepts related to Physical and Chemical Change on Middle and High School Science Textbooks

Seoung-Hey Paik;Sun Kyoung Kim;
Journal of the Korean Chemical Society, vol. 47, iss. 2, 2003, pp. 155-164
 
3. Development of Animation Materials for a Unit related to

Baek, Seong Hui;Kim, Jin Gyu;
Journal of the Korean Chemical Society, vol. 46, iss. 5, 2002, pp. 456-465
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