Yolanda Eka Putri, Yunus Abidin, and Yulianeta. “NILAI-NILAI SOFT SKILL TULISAN GURU DALAM KOLOM OPINI SURAT KABAR PADANG EKPRESS”. Seminar Internasional Riksa Bahasa, May 2020, http://proceedings.upi.edu/index.php/riksabahasa/article/view/976.