Rumino, Rumino. “Improving Teacher Ability in Preparing HOTS Questions Through In-House Training (IHT) at Ngaliyan State Elementary School, Samigaluh, Kulon Progo Regency for the 2021/2022 Academic Year”. IJCER (International Journal of Chemistry Education Research) 6, no. 2 (October 24, 2022): 147–152. Accessed May 3, 2024. https://journal.uii.ac.id/IJCER/article/view/25732.