Chenglin B, Jinlin L, Liuyan Y, Zhiyao B. An Empirical Study on the Relationship between Language Proficiency and Economic Income of Chinese and Vietnamese Border Residents: A Case Study of Dongxing City, Guangxi Province. JAL [Internet]. 2020 Jan. 10 [cited 2024 Nov. 22];11:1-18. Available from: https://rajpub.com/index.php/jal/article/view/8551