R. S. Widagdo, D. A. Asfani, I. M. Y. Negara, and D. Fahmi, “Dielectric Strength Enhancement of Soybean Oil (FR3) with Nanoparticle Insulation: A Statistical Analysis”, Eng. Technol. Appl. Sci. Res., vol. 15, no. 5, pp. 26430–26439, Oct. 2025.