Rakitikul, Waleepan, Tammasit Tammasat, Jedsada Udjai, and Piyarat Nimmanpipug. 2026. “EXPERIMENTAL AND DFT STUDY OF GELLING FACTOR OF PECTIN”. Suranaree Journal of Science and Technology 23 (4):421-28. https://ph04.tci-thaijo.org/index.php/SUJST/article/view/14304.