PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION PADA MATERI ASAM BASA UNTUK MELATIHKANKETERAMPILAN BERPIKIR KRITIS SISWA KELAS XI SMAN 1 DRIYOREJO GRESIK (IMPLEMENTATION OF COOPERATIVE LEARNING MODEL TYPE GROUP INVESTIGATION IN THE ACID BASE TOPIC TO TRAIN CRITICAL THINKING SKILLS STUDENTS XI GRADE SMAN 1 DRIYOREJO GRESIK) - DWI PUSPITASARI, RIZA (Universitas Negeri Surabaya, 2016)