“STUDY OF THE STRUCTURE OF OLIGOMERS OBTAINED FROM SODIUM POLYSULFIDE EPICHLOROHYDRIN USING SPECTRAL METHODS ”, ITFTTDM, vol. 3, no. 10, pp. 386–389, Nov. 2025, Accessed: Oct. 09, 2026. [Online]. Available: https://universalpublishings.com/index.php/itfttdm/article/view/14155