Rahayu R, Ulya H, . K, . I, Kurniasih N. Collaborative Assessment Using QR-Code on Ethno-mathematics Learning for Pre-Service Teacher. IJET [Internet]. 2018 Apr. 15 [cited 2024 Apr. 28];7(2.13):413-7. Available from: https://www.sciencepubco.com/index.php/ijet/article/view/16934