Ngoc, D.M. and My, D.V. 2025. Extending the Norm Activation Model: The Moderating Role of Subjective Norms in Tourists’ Responsible Behavior Toward Cultural Heritage of Tourists. Journal of Cultural Analysis and Social Change. 10, 2 (Nov. 2025), 782–792. DOI:https://doi.org/10.64753/jcasc.v10i2.1681.