Salo, Yulia Ayuningsih. “Pengaruh Metode Discovery Learning Terhadap Keaktifan Belajar Siswa (studi Quasi Eksperimen Kelas VII SMPN 6 Banda Aceh)”. Jurnal Penelitian Pendidikan, vol. 16, no. 3, Dec. 2016, pp. 297-04, https://doi.org/10.17509/jpp.v16i3.4825.