Bercasio, Rebecca Rosario, and Rutesa A Adornado. “Enriching High School English Lessons With Global Citizenship Education Using Phenomenon-Based Learning”. Randwick International of Education and Linguistics Science Journal 4, no. 2 (June 11, 2023): 216-232. Accessed September 13, 2024. https://randwickresearch.com/index.php/rielsj/article/view/651.