Xiaofei, H., and P. Modehiran. “VOCABULARY TEACHING USING PICTURE STORYTELLING TO IMPROVE ENGLISH VOCABULARY KNOWLEDGE OF GRADE 7 THAI STUDENTS”. An Online Journal of Education, vol. 14, no. 2, Sept. 2019, p. OJED1402018 (13 pages), https://so01.tci-thaijo.org/index.php/OJED/article/view/191470.