@article{Oh_2009,
title={How can Teachers Help Students Formulate Scientific Hypotheses? Some Strategies Found in Abductive Inquiry Activities of Earth Science},
volume={32},
ISSN={1464-5289},
url={http://dx.doi.org/10.1080/09500690903104457},
DOI={10.1080/09500690903104457},
number={4},
journal={International Journal of Science Education},
publisher={Informa UK Limited},
author={Oh,
Phil Seok},
year={2009},
month=aug,
pages={541–560} }