1. Acid-base equilibria, part I. Upper secondary students' misconceptions and difficulties;Demerouti;Chem. Educator,2004
2. Acid-base equilibria, part II. Effect of developmental level and disembedding ability on students' conceptual understanding and problem-solving ability;Demerouti;Chem. Educator,2004
3. Experienced teachers' pedagogical content knowledge of teaching acid-base chemistry;Drechsler;Res. Sci. Educ.,2008
4. Student understanding of pH;Watters;Biochem. Mol. Biol. Educ.,2006