Cita APA

Đặng Thị Hồng Hiệp, & Trần Quang Hải. (2015). An investigation into prepositions in textbooks of english 10, 11, 12 at high schools in viet nam.

Chicago Style Citation

Đặng Thị Hồng Hiệp, i Trần Quang Hải. An Investigation Into Prepositions in Textbooks of English 10, 11, 12 At High Schools in Viet Nam. 2015.

Cita MLA

Đặng Thị Hồng Hiệp, i Trần Quang Hải. An Investigation Into Prepositions in Textbooks of English 10, 11, 12 At High Schools in Viet Nam. 2015.