Krisdianata, Yoannes Yuka, Rachelina Larasati, Pichet Saengthien, and Sikarin Kosanwattana. 2025. “Integrating Project-Based Learning in English for Ecotourism and Hospitality: A Descriptive Analysis of Student Outcomes”. Saengtham College Journal 17 (2). Nakhon Phathom, Thailand:135-56. https://so01.tci-thaijo.org/index.php/scj/article/view/275822.