APA (7 वां संस्करण) प्रशस्ति पत्र

Ngatiyem, N. (2012). Promoting Graded Exercises To Develop The Students' Writing Skill: A Classroom Action Research In Smp 1 Boyolali Students Grade Viii Semester 2 Academic Year 2010/2011.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ngatiyem, Ngatiyem. Promoting Graded Exercises To Develop The Students' Writing Skill: A Classroom Action Research In Smp 1 Boyolali Students Grade Viii Semester 2 Academic Year 2010/2011. 2012.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ngatiyem, Ngatiyem. Promoting Graded Exercises To Develop The Students' Writing Skill: A Classroom Action Research In Smp 1 Boyolali Students Grade Viii Semester 2 Academic Year 2010/2011. 2012.

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