Gaya APA
Purnasari, D., Salisah, N, H. (2016).
The relationship between optimism and students' speaking achievement at the first year of English education department UIN Sunan Ampel Surabaya academic year 2015-2016/ Diyah Purnasari; Pembimbing: Mohamad Salik .
Surabaya:
Fakultas Tarbiyah dan Pendidikan UINSA.
Gaya MLA
Purnasari, Diyah., Salisah, Nikmah, Hadiati.
"The relationship between optimism and students' speaking achievement at the first year of English education department UIN Sunan Ampel Surabaya academic year 2015-2016/ Diyah Purnasari; Pembimbing: Mohamad Salik".
Surabaya:
Fakultas Tarbiyah dan Pendidikan UINSA,
2016.
Skripsi.