@article{Teknowijoyo_Sunardi_Gunarhadi_2020, title={Analysis of Student Needs on the Development of Google Classroom-Based Digital Teaching Materials in Physics Subjects for Class VIII of Kalam Kudus Christian Middle School, Surakarta}, volume={5}, url={http://dx.doi.org/10.22161/ijels.54.54}, DOI={10.22161/ijels.54.54}, number={4}, journal={International Journal of English Literature and Social Sciences}, publisher={AI Publications}, author={Teknowijoyo, Felixtian and Sunardi, Sunardi and Gunarhadi, Gunarhadi}, year={2020}, pages={1209–1213} }