Khamrungsri, Manatchanok, and Ratree Siripan. 2022. “DEVELOPMENT OF LEARNING PACKAGES ON HERBAL BENEFITS FOR 12th GRADE STUDENTS AT ONGKHARAK SCHOOL, NAKHON NAYOK PROVINCE”. Journal of Industrial Education 21 (2):66-73. https://ph01.tci-thaijo.org/index.php/JIE/article/view/248087.