Sustainable Numeracy Literacy Learning Based on Local Wisdom Through Digital Media: An Ethnomathematical Approach to Quality Education and Environmental AwarenessNensy Megawati Simanjuntak, Muhajir, Haerussaleh, Ahmad Hatip and Wan SurayaE3S Web Conf., 657 (2025) 05002DOI: https://doi.org/10.1051/e3sconf/202565705002