Kuairakhan, T., and T. Unnanantn. “The Development of English Reading Comprehension Achievement Using Scaffolding Activity Packages for Grade 9 Students at Watkhemapirataram School”. Journal of Modern Learning Development, vol. 7, no. 4, May 2022, pp. 234-48, https://so06.tci-thaijo.org/index.php/jomld/article/view/254915.