<![CDATA[The aim of this study are to find out whether there is significant improvement in students writing skill and to investigate what language features produced by students after being taught by using diary writing. The sample of this research was X IPS-4 at SMAN 1 Natar. The writing test was administered as the instrument of this research. The data were analyzed by using repeated measure t-test in which the significance was determined by p0,005. The result showed that the students’ mean score in pretest 60.82 while in the posttest mean score was 74.12 in which t-valuet-table (11.8822.452) or sig p0.05 (0.0000.05). Furthermore, specific time and passive voice are the new language features that produced by students. It can be concluded that diary writing activity is effective to improve students’ writing skill.doi: https://dx.doi.org/10.23960/UJET.v10.i2.202109]]>
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