alga arine fristyayuniar, algaarine. 2023. “Development of Student Worksheets to Improve Student’s Mathematical Logical Intelligence Based on Problem Based Learning: Postgraduate Semarang State University”. Jurnal Riset Pendidikan Kimia (JRPK) 12 (2):119-26. https://doi.org/10.21009/JRPK.122.06.