Aini, S. D., Zayyadi, M., & Saleh, K. A. (2020). WRITTEN MATHEMATICAL COMMUNICATION SKILLS ON OPEN-ENDED PROBLEMS: IS IT DIFFERENT BASED ON THE LEVEL OF MATHEMATICS ABILITY?. MaPan : Jurnal Matematika Dan Pembelajaran, 8(2), 179–204. https://doi.org/10.24252/mapan.2020v8n2a2