ศิลารักษ์ เอธัส. 2022. “The Development of Learning Achievement in Social Studies Religion and Culture Courses Economics of Grade 6 Students Using Collaborative Learning CIPPA Techniques”. Education Journal Faculty of Education, Nakhon Sawan Rajabhat University 3 (3). Nakhon Sawan,Thailand:57-67. https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/254277.