- On Students' Understanding of Implicit Differentiation based on APOS Theory2020 | Faculty of Mathematics and Physics
- Development of the differential calculus schema for two-variable functions2022 | Faculty of Mathematics and Physics
- A replication study of university students' understanding of functions of two variables2022 | Faculty of Mathematics and Physics
- Student understanding of functions of two variables: A reproducibility study2022 | Faculty of Mathematics and Physics
- University Students' Understanding of Directional Derivative: An APOS Analysis2023 | Faculty of Mathematics and Physics
- Students' geometric understanding of partial derivatives and the locally linear approach2023 | Faculty of Mathematics and Physics