Nila Widiya Wati et al. 2025. The Effectiveness of Heroes’ Day Commemoration Activities in Fostering Multicultural Attitudes Among Students at SMA Negeri 3 Mataram. International Journal Of Education And Social Research (IJESR). 3, 4 (Dec. 2025), 20–23. DOI:https://doi.org/10.62017/ijesr.v3i4.145.