Duong Thuy Le และ Raksangob Wijitsopon. (2013) A STUDY OF COHESION IN VIETNAMESE EFL STUDENTS' ARGUMENTATIVE ESSAYS THROUGH THEMATIC PROGRESSION ANALYSIS (TPA). Chulalongkorn University:ม.ป.ท.Duong Thuy Le และ Raksangob Wijitsopon. 2013. A STUDY OF COHESION IN VIETNAMESE EFL STUDENTS' ARGUMENTATIVE ESSAYS THROUGH THEMATIC PROGRESSION ANALYSIS (TPA). ม.ป.ท.:Chulalongkorn University;Duong Thuy Le และ Raksangob Wijitsopon. A STUDY OF COHESION IN VIETNAMESE EFL STUDENTS' ARGUMENTATIVE ESSAYS THROUGH THEMATIC PROGRESSION ANALYSIS (TPA). ม.ป.ท.:Chulalongkorn University, 2013. Print.