Sonsiri A, Inkampa U, Amdee N, Maneesaeng T. Effect and Optimal Variable of Mangosteen peel powder for Green sand mold. RMUTP Sci J [internet]. 2020 Jun. 28 [cited 2026 Feb. 21];14(1):26-3. available from: https://ph02.tci-thaijo.org/index.php/RMUTP/article/view/143233