Tonmitra, K., A. Suksri, and C. Addoddorn. “HVDe BRIDGE GENERATOR 40 kV 5 rnA”. Engineering and Applied Science Research, vol. 32, no. 1, Nov. 2015, pp. 77-92, https://ph01.tci-thaijo.org/index.php/easr/article/view/42312.