Labiru, Labiru. “Pengaruh Layanan Konseling Dan Motivasi Berprestasi Belajar Siswa Terhadap Hasil Belajar Matematika (The Effect of Counseling Service and Learning Achievement Motivation towards Mathematics Learning Outcomes)”. Jurnal Penelitian Pendidikan, vol. 14, no. 1, June 2014, pp. 76-88, https://doi.org/10.17509/jpp.v14i1.3214.