Kirdmalai N, Vaseenonta C, Nueangsittha N, Pujit P, Niljinda S, Junthanon J. Research and Production of Serum Products Derived from Indigo Extract, together with a Detailed Examination of the Associated Commercial Costs. The Organic Herbal Herb Seangchan Community Enterprise Group is Situated in Sakon Nakhon Province. RJPJ [internet]. 2024 Dec. 27 [cited 2026 Aug. 30];18(61):163-79. available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/275235