Winda Putri Alyani Hulu, and Dimas Gigih Damarsari. “Improving Students’ Understanding of Substance Changes through the Use of Household Materials in Science Practicum at Private Junior High School”. Co-Catalyst: Journal of Science Education Research and Theories, vol. 2, no. 2, Aug. 2025, pp. 106-12, doi:10.33830/cocatalyst.v2i2.12067.