Horvat, Saša, Dušica Rodić, Mirjana Segedinac, and Tamara Rončević. “Evaluation of Cognitive Complexity of Tasks for the Topic Hydrogen Exponent in the Solutions of Acids and Bases”. Journal of Subject Didactics 2, no. 1 (February 19, 2018): 33-45. Accessed November 24, 2024. https://aes.bio.bg.ac.rs/index.php/JSD/article/view/198.