APA citiranje

Hiep, D. T. H. An Investigation into Prepositions in Textbooks of English 10, 11, 12 at High Schools in Vietnam.

Trích dẫn kiểu Chicago

Hiep, Dang Thi Hong. An Investigation Into Prepositions in Textbooks of English 10, 11, 12 At High Schools in Vietnam.

MLA citiranje

Hiep, Dang Thi Hong. An Investigation Into Prepositions in Textbooks of English 10, 11, 12 At High Schools in Vietnam.