Kaewcharee, Kanitta, and Kanrawee Busayanon. “The Development of Instructional Packages on the Development of Thailand in the Rattanakosin Period with Inquiry-Based Learning (5E) to Promote Academic Achievement in History for Prathomsuksa 6 Students”. Suan Dusit Graduate School Academic Journal 21, no. 2 (August 8, 2025): 1–14. accessed August 29, 2026. https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/462.