1. 1. Ariffin M M, Ishak M T, Hamid M H A, Katim N I A, Ishak A M, Azis N. Ageing effect of vegetable oils impregnated paper in transformer
2. application. In proc of: IEEE International Conference on High Voltage Engineering and Power Systems 2017, https://doi.org/10.1109/
3. ICHVEPS.2017.8225939.
4. 2. ASTM D 1903-96, Standard test method for coefficient of thermal expansion of electrical insulating liquids of petroleum origin, and askarels,
5. 1996.