Stojanovska, Marina, and Vladimir M. Petruševski. “Investigating the Presence of Misconceptions of 8th Grade Students through Multiple-Choice Questions at National Chemistry Competition Test”. Macedonian Journal of Chemistry and Chemical Engineering 36, no. 2 (November 29, 2017): 279–284. Accessed May 13, 2024. https://mjcce.org.mk/index.php/MJCCE/article/view/1257.