Suriyani, L. and Kurniah, N. 2021. APPLICATION OF GROUP GUIDANCE SERVICES TO INCREASE RESPONSIBILITY AND MATHEMATICAL LEARNING ACHIEVEMENTS (Study of Class IX SMP Negeri 06 Lebong). Diadik: Jurnal Ilmiah Teknologi Pendidikan. 9, 1 (Sep. 2021), 114–122. DOI:https://doi.org/10.33369/diadik.v9i1.17955.