एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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