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), pp. 119–126. doi: 10.21009/JRPK.122.06.