Kamid K, Kurniawan DA, Perdana R, Citra YD, Rahman AA, Fadillah P. Mathematical process skills and cooperation character of elementary school students on simple flat building materials. IJIRE [Internet]. 2023 Dec. 31 [cited 2024 Nov. 26];10(2):132-45. Available from: https://un-pub.eu/ojs/index.php/IJIRE/article/view/9146