Efendi, A. and Yurnetti, Y. 2021. DEVELOPMENT OF E-MODULE BASED ON CONTEXTUAL APPROACHES ON WORK AND SIMPLE MACHINES FOR SECONDARY SCHOOL. SEMESTA: Journal of Science Education and Teaching. 4, 2 (Dec. 2021), 134–141. DOI:https://doi.org/10.24036/semesta/vol4-iss2/161.