Phạm, Đ. P. T. (2019). An investigation the value of upgraded english proficiency after professional development training: EFL teachers' perceptions: Master thesis: Education. Program Principles and methods in English language education. Cần Thơ: Trường đại học Cần Thơ.
Chicago Style aipamenaPhạm, Đinh Phương Thanh. An Investigation the Value of Upgraded English Proficiency After Professional Development Training: EFL Teachers' Perceptions: Master Thesis: Education. Program Principles and Methods in English Language Education. Cần Thơ: Trường đại học Cần Thơ, 2019.
MLA aipamenaPhạm, Đinh Phương Thanh. An Investigation the Value of Upgraded English Proficiency After Professional Development Training: EFL Teachers' Perceptions: Master Thesis: Education. Program Principles and Methods in English Language Education. Cần Thơ: Trường đại học Cần Thơ, 2019.