Siriwanna, J., and P. Klanrit. “The Implementation of Flipped Classroom Instruction to Enhance English Reading Comprehension Skills of Grade 9 Students”. Journal of Roi Et Rajabhat University, vol. 19, no. 1, Apr. 2025, pp. 17-28, https://so03.tci-thaijo.org/index.php/reru/article/view/284963.