Mansur N. THE EFFECT OF CONCRETE THINGS ON VOCABULARY LEARNING OUTCOMES OF GRADE SEVEN STUDENTS AT SMP NEGERI 13 PALU . Madika [Internet]. 2022Dec.9 [cited 2025Jan.9];2(2):57-. Available from: https://jurnal.uindatokarama.ac.id/index.php/madika/article/view/1360