Gaya APA

Sirojudin, R, F. (2018). Students' errors in transforming affirmative to negative and interrogative sentences . Bogor: FKIP Unpak.

Gaya MLA

Sirojudin, Rezna, Febrian/031111126. "Students' errors in transforming affirmative to negative and interrogative sentences". Bogor: FKIP Unpak, 2018. Skripsi English.