P. H. Tjahjanti, R. N. Setyo, E. Widodo, and A. Syakina, “Comparing The Tear Resistance Of PVC Sheets With Dioctyl Phthalate (DOP) And Epoxydized Soybean Oil (ESBO) Plasticizers”, Improsci, vol. 3, no. 5, pp. 464–482, Jun. 2026.