Dewi, S. (2015). Correlation study between students' interest in writing and vocabulary mastery toward their writing ability at the eighth grade student of MTSN 1 Surakarta in the academic year of 2014/2015. Jurusan Pendidikan Bahasa Inggris Fakultas Ilmu Tarbiyah dan Keguruan IAIN Surakarta.

Dewi, Sandra. Correlation Study between Students' Interest in Writing and Vocabulary Mastery Toward Their Writing Ability At the Eighth Grade Student of MTSN 1 Surakarta in the Academic Year of 2014/2015. Jurusan Pendidikan Bahasa Inggris Fakultas Ilmu Tarbiyah dan Keguruan IAIN Surakarta, 2015.

Dewi, Sandra. Correlation Study between Students' Interest in Writing and Vocabulary Mastery Toward Their Writing Ability At the Eighth Grade Student of MTSN 1 Surakarta in the Academic Year of 2014/2015. Jurusan Pendidikan Bahasa Inggris Fakultas Ilmu Tarbiyah dan Keguruan IAIN Surakarta, 2015.