Nghieu, V.
(2009).
 Semantic structure and passive meaning of được, bị, phải in Vietnamese and ban, trǝw in Khmer.
<em>VNU Journal Of Science: Social Sciences And Humanities, 25</em>(5E).
Retrieved from <a href="https://js.vnu.edu.vn/SSH/article/view/1949" target="_new">https://js.vnu.edu.vn/SSH/article/view/1949</a>