alga arine fristyayuniar, algaarine 2023. Development of Student Worksheets to Improve Students’ Mathematical Logical Intelligence Based on Problem Based Learning. Jurnal Riset Pendidikan Kimia (JRPK). 12, 2 (Jan. 2023), 119 - 126. DOI:https://doi.org/10.21009/JRPK.122.06.