Thuy DTB. VALIDITY ANALYSIS OF 2A + 2B GRAMMAR - VOCABULARY TESTS AT THE FACULTY OF FRENCH LANGUAGE AND CULTURE, UNIVERSITY OF LANGUAGES AND INTERNATIONAL STUDIES - VIETNAM NATIONAL UNIVERSITY, HANOI. JFS [Internet]. 2018 Dec. 3 [cited 2024 Nov. 21];34(6). Available from: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4326