Gaya APA

N., A, M. (2014). Investigating Muhammadiyah University EFL Learner's Grammar Errors in Writing Descriptive Paragraphs . Palu; Indonesia: Pascasarjana Universitas Tadulako.

Gaya MLA

N., A., Mappewali. "Investigating Muhammadiyah University EFL Learner's Grammar Errors in Writing Descriptive Paragraphs". Palu; Indonesia: Pascasarjana Universitas Tadulako, 2014. TESIS.