IMPLEMENTASI PROCESS ORIENTED GUIDED INQUIRY LEARNING (POGIL) UNTUK MELATIH KETERAMPILAN METAKOGNITIF PADA MATERI POKOK REAKSI REDUKSI-OKSIDASI (IMPLEMENTATION PROCESS ORIENTED GUIDED INQUIRY LEARNING (POGIL) FOR PRACTICE STUDENT METACOGNITIVE SKILL ON REDUCTION-OXIDATION MATERIAL) - RAHMAWATI T.P, NUR (UNESA Journal of Chemical Education, 2014)