Susilawati, Susilawati, Baiq Arum Kusumayati, Sutrio Sutrio, and Aris Doyan. 2022. “Practicality of Learning Devices Based on Conceptual Change Model to Improve Concept Mastery of Students in the Gas Kinetic Theory Material”. AMPLITUDO : Journal of Science and Technology Innovation 1 (2):54-57. https://doi.org/10.56566/amplitudo.v1i2.13.