Kristian, Ananda Kevin. “A Need of HOTS-Based English Book for Ninth Grade Students”. The Art of Teaching English as a Foreign Language (TATEFL) 3, no. 2 (November 30, 2022): 138–144. Accessed July 27, 2025. https://jurnal.stkipahsingaraja.ac.id/index.php/tatefl/article/view/417.