DEVELOPMENT OF INTEGRATED SCIENCE STUDENT WORKSHEETS BASED ON A CONTEXTUAL APPROACH ON GLOBAL WARMING MATERIALS FOR CLASS VII SMP DEVELOPMENT OF INTEGRATED SCIENCE STUDENT WORKSHEETS BASED ON A CONTEXTUAL APPROACH ON GLOBAL WARMING MATERIALS FOR CLASS. universe [Internet]. 2022 Jul. 31 [cited 2026 Aug. 14];3(1):51-6. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/159