Supriadi, D., and N. Kurniah. “THE IMPLEMENTATION OF PORTOFOLIO – BASED ON LEARNING TO INCREASE STUDENTS’ RESPONSIBILITY AND ACHIEVEMENTS (Study On Indonesia Lesson on Students of XI Grade at SMA Negeri 1 Lebong District)”. Diadik: Jurnal Ilmiah Teknologi Pendidikan, vol. 9, no. 2, Aug. 2021, pp. 86-92, doi:10.33369/diadik.v9i2.17436.