Saminathan, Catherine, Lim Pei Yin, Zarina Mustafa, and Amelia Abdullah. 2020. “Teachers’ Challenges in Implementing the Highly Immersive Programme (HIP) in the Classrooms”. LEARN Journal: Language Education and Acquisition Research Network 13 (2):194-207. https://so04.tci-thaijo.org/index.php/LEARN/article/view/243707.