Febri Yanti Tanjung, et al. “DEVELOPMENT OF LKPD BASED ON BRAIN BASED LEARNING USING CROSSWORD PUZZLES ON THE TOPIC OF ARITHMETIC SERIES AND SEQUENCES FOR CLASS X MAS DARUL ISTIQOMAH PADANGSIDIMPUAN”. Multidisciplinary Indonesian Center Journal (MICJO), vol. 2, no. 3, July 2025, pp. 3515-27, doi:10.62567/micjo.v2i3.1083.