Rahmasari, Brigitta Septarini. “Using Opinion Proof Strategy to Improve Reading Ability of Second Semester Students of IKIP PGRI Madiun”. Jurnal Kependidikan: Jurnal Hasil Penelitian Dan Kajian Kepustakaan Di Bidang Pendidikan, Pengajaran Dan Pembelajaran, vol. 2, no. 2, Sept. 2016, doi:10.33394/jk.v2i2.452.