Amanda, B., Sutoyo, A. and Nusantoro, E. (2017) “Peningkatan Motivasi Belajar Siswa Kelas VIII Melalui Layanan Bimbingan Kelompok”, Indonesian Journal of Guidance and Counseling: Theory and Application, 2(4). doi: 10.15294/ijgc.v2i4.17214.