Nuha, I. U., & Pertiwi, F. N. (2020). DISCOVERY LEARNING ASSISTEND BY FRIENDLY MODEL ENVIRONMENTAL TEACHING AIDS THAT RELATED TO THE STUDENT’S SCIENTIFIC THINGKING ABILITIES. SEMESTA: Journal of Science Education and Teaching, 3(2), 146–155. https://doi.org/10.24036/semesta/vol3-iss2/133