Gaya APA

An analysis of students ability in writing business letters at the second year of SMEA : a case study at SMEA PGRI 10 Jakarta. (). Jakarta: fpbs. bahasa dan sastra inggris.

Gaya MLA

An analysis of students ability in writing business letters at the second year of SMEA : a case study at SMEA PGRI 10 Jakarta. . Jakarta: fpbs. bahasa dan sastra inggris, . Text.