Pratiwi, Y. N., Analita, R. N., Rohmah, R. S. and Rahayu, W. (2024) “The Relationship Between Formal Reasoning Ability and Chemistry Achievement of 12th Grade Students and Its Contribution to Their Level of Understanding in Higher Education”, Jurnal Ilmiah Kanderang Tingang, 15(1), pp. 175-185. doi: 10.37304/jikt.v15i1.324.