Ramadianti, W., Syofiana, M. and Mahyudi, M. 2018. Pengembangan Soal Matematika Open-Ended Berkonteks Bumi Rafflesia. SJME (Supremum Journal of Mathematics Education). 2, 1 (Jan. 2018), 8–16. DOI:https://doi.org/10.35706/sjme.v2i1.922.