TY - JOUR T1 - Influence of Problem Solving Based on Multiple Representations Model on Teaching and Learning of Chemistry on Student¡¯s Academic Self-efficacy and Student¡¯s Cognitive Achievement A1 - Tima, Maria Tensiana A1 - Sutrisno, Hari Y1 - 2018 PY - 2018 DA - 2018/06/30 N1 - doi: 10.12691/education-6-7-1 DO - 10.12691/education-6-7-1 T2 - American Journal of Educational Research JF - American Journal of Educational Research JO - American Journal of Educational Research SP - 887 EP - 892 VL - 6 IS - 7 PB - Science and Education Publishing SN - 2327-6150 M3 - doi: 10.12691/education-6-7-1 UR - http://pubs.sciepub.com/education/6/7/1 Y2 - 2018/06/30 ER -