Sumanty, M. T., & Turdjai, T. (2021). IMPLEMENTATION OF DISCOVERY LEARNING MODELS TO IMPROVE THE ABILITY OF SOLVING PROBLEMS AND LEARNING ACHIEVEMENTS (Study on Chemistry Subject Class XII Students in Senior High School 1 Tebing Tinggi). Diadik: Jurnal Ilmiah Teknologi Pendidikan, 8(2), 71–81. https://doi.org/10.33369/diadik.v8i2.17459