Ongphalachai, Kanoknat, Sirirat Kosakarika, and Yupawan Vannavanit. 2023. “Environmentally Friendly Product Symbols that Influence Brand Equity and Consumers’ Buying Decision Process”. Economics and Business Administration Journal Thaksin University 15 (3). Songkhla, Thailand:189-208. https://doi.org/10.55164/ecbajournal.v15i3.259943.