Bumrungphet, K.- upsorn, and P. Permwanichagun. “Feasibility Study on Investment in Bottled Herbal Jaew Hon Product”. MBA-KKU Journal, vol. 15, no. 1, Aug. 2022, pp. 18-40, https://so04.tci-thaijo.org/index.php/mbakkujournal/article/view/254204.