Tadsuan, S., Thammaprasit, T., Tangsiriworakul, C. and Manop, C. (2013) “Estimation of Core Loss of 3 phase Transformer When Non-Sinusoidal Voltage Supply”, Engineering and Applied Science Research, 31(2), pp. 175–189. available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/6710 (accessed: 16 December 2025).