Lumbantobing SS. IMPROVE COGNITIVE ABILITIES AND LEARNING MOTIVATION STUDENT IN ELEMENTARY SCHOOL WITH SCIENTIFIC APPROACHES AND STORYTELLING ACTIVITIES. Int. J. Educ. Manag. Innov. [Internet]. 2020Mar.9 [cited 2024May5];1(2):179-85. Available from: http://journal2.uad.ac.id/index.php/ijemi/article/view/1717