Tang, D.V. et al. 2025. Teaching Political Economy through OCOP Value Chains of Traditional Cultural Products: The Case of Ngoc Thom Conical Hats in Vietnam. International Journal on Culture, History, and Religion. 7, SI2 (Oct. 2025), 1010–1023. DOI:https://doi.org/10.63931/ijchr.v7iSI2.478.