Ruspitah, E., and J. Sapri. “DEVELOPMENT OF MATHEMATICS E-MODULE TO IMPROVE STUDENT’S LEARNING ACHIEVEMENT (Study on Class XII Students of SMAN 1 Gumay Talang”. Diadik: Jurnal Ilmiah Teknologi Pendidikan, vol. 9, no. 2, Aug. 2021, pp. 173-80, doi:10.33369/diadik.v9i2.17445.