By Jeong Heisawn   Kim Hyo Sik   in Educational Gerontology

ISSN:1521-0472|35|10|906-928

Routledge Ltd‎(2009)‎

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By Jeong Heisawn   Songer Nancy   Lee Soo-Young   in Research in Science Education

ISSN:0157-244X|37|1|75-97

Springer Publishing Company ‎(2007)‎

Access to resources Favorite 11.912548