@misc{repository24713, title = {The Influence of Multiple Representation-Based Online Lectures Using Geogebra on Understanding of Students' Thermodynamics Concepts During the Covid-19 Pendemic Period}, publisher = {AL-ISHLAH: Jurnal Pendidikan}, author = {Martin, Martin}, url = {http://repository.uhamka.ac.id/id/eprint/24713/} }