@misc{Chrzanowski_Marcin_M._Elements,
 author={Chrzanowski, Marcin M. and Piszczek, Ewa},
 howpublished={online},
 publisher={Educational Research Institute},
 language={eng},
 type={article},
 title={Elements of health education in science coursebooks},
 keywords={science, biology, coursebook, health education, core curriculum, health awareness},
}