Tien Dung, Trinh. 2023. “Some Features of the Learning - Success in the Land of ‘Co Bon’ (Dong Thanh Commune, Dong Son District, Thanh Hoa Province, Vietnam)”. International Journal of English Literature and Social Sciences (IJELS) 8 (2). https://journal-repository.com/index.php/ijels/article/view/6200.