Booranawong, Thitima, Sanatcha Theerachun, and Tatcha Sampim. “New Value Chain Analysis and Income Distribution Measurement of Khanom La Products in Nakhon Si Thammarat Province”. Suan Dusit Graduate School Academic Journal 18, no. 2 (June 15, 2022): 139–155. accessed December 11, 2025. https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/264.