Siriamornsith, Ratthavith, and Sopark Panichpapiboon. 2024. “MARKETING COMMUNICATION STRATEGY OF PRODUCTS FOR ELDERLY”. Journal of Graduate School Sakon Nakhon Rajabhat University 21 (93). Sakon Nakhon, Thailand:14-25. https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/261011.