Nhac, T.H. and La , .N.B.M. 2018. THE EFFECTS OF PORTFOLIOS ON DEVELOPING WRITING SKILLS OF ENGLISH MAJOR STUDENTS AT HANOI LAW UNIVERSITY. JOURNAL OF INQUIRY INTO LANGUAGES AND CULTURES. 2, 3 (Dec. 2018), 295–303. DOI:https://doi.org/10.63506/jilc.0203.218.