A. Dhoruri, S. Sugiyono, E. Retnowati, D. Lestari, and E. R. Sari, “Pelatihan Penyusunan Lembar Kegiatan Siswa (LKS) Matematika Berbantuan Geogebra Training to Create Mathematics Student Activity Sheet Using Geogebra”, JPMMP, vol. 2, no. 1, pp. 9–14, Mar. 2018.