Daokongkaew, S., T. Sangen, K. Patchimsawat, and B. Somanee. “Community Marketing Ingredients that Affect the Purchase of Processed Herbal Products in Lopburi Province”. Rajapark Journal, vol. 18, no. 57, Apr. 2024, pp. 431-48, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/269883.