1.
et al. BRS. The Relationship between the Ability to Make a Concept Map with the Study Achievement of PGSD Umn Al-Washliyah Medan Students. IJAST [Internet]. 2020Jan.27 [cited 2021Sep.28];29(2):3405 -3414. Available from: https://sersc.org/journals/index.php/IJAST/article/view/4886