Riwayatiningsih, Rika -. “IMPLEMENTING PROCESS WRITING APPROACH TO IMPROVE THE WRITING SKILL OF THE SECOND SEMESTER STUDENTS OF NUSANTARA PGRI KEDIRI UNIVERSITY”. Nusantara of Research : Jurnal Hasil-Hasil Penelitian Universitas Nusantara PGRI Kediri, vol. 2, no. 1, Apr. 2015, https://doi.org/10.29407/nor.v2i1.74.