Thongchai lahuna และ Kanokwan Plasila;Wasana Sepha. (2025) Development of Local Food from the Wisdom of the Elderly to Food Products, for Commercial Distribution in Chiang Saen District, Chiang Rai Province. <i>Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University</i>, <i>19</i>(1), 167 - 186.Thongchai lahuna และ Kanokwan Plasila;Wasana Sepha. "Development of Local Food from the Wisdom of the Elderly to Food Products, for Commercial Distribution in Chiang Saen District, Chiang Rai Province". Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 19 (2025):167 - 186.Thongchai lahuna และ Kanokwan Plasila;Wasana Sepha. Development of Local Food from the Wisdom of the Elderly to Food Products, for Commercial Distribution in Chiang Saen District, Chiang Rai Province. Pibulsongkram Rajabhat University:ม.ป.ท. 2025.