Agustina, L., Feronika, T. and Yunita, L. (2021) “The Analysis of HOTS (Higher Order Thinking Skills) Questions Based on Brookhart Category in the 2013 Curriculum High School Chemistry Textbook”, Journal of Educational Chemistry (JEC), 3(1), pp. 23–34. doi: 10.21580/jec.2021.3.1.6546.