Hanifah NM, Kh. B. MA, Budiman MA. PENGARUH MODEL OPEN ENDED PROBLEM BERBANTU MEDIA KOTAK TELUR PELANGI (KOTELA) TERHADAP HASIL BELAJAR MATEMATIKA. J. Educ. Technol. [Internet]. 2019 Nov. 1 [cited 2025 Feb. 1];3(3):134-9. Available from: https://ejournal.undiksha.ac.id/index.php/JET/article/view/21734