Jaritngam, Duangnapa, Supanee Sengsri, and Panuwat Pakdeewong. 2023. “A VIRTUAL COMMUNITY-BASED COOPERATIVE LEARNING SYSTEM IN VOCATIONAL SKILL FOR LOWER SECONDARY SCHOOL STUDENT IN LOWER NORTHERN THAILAND : A CASE OF SUKOTHAI PROVINCE”. Journal of Social Science and Cultural 7 (6):51-61. https://so06.tci-thaijo.org/index.php/JSC/article/view/264830.