PARDIYONO, PARDIYONO. “Kemampuan Mahasiswa Universitas Tunas Pembangunan Surakarta FKIP Program Studi PKO Dalam Tes TOEFL Seksi ‘Structure and Written Expression’”. Jurnal Ilmiah Spirit 16, no. 2 (July 2, 2017). Accessed July 3, 2024. http://ejournal.utp.ac.id/index.php/JIS/article/view/581.