1. J.A.L. Robertson, J. Nucl. Mater. 100, 108 (1981).
2. A.K. Rivai, et al., Jusami 14, 67 (2018).
3. D. Lim, N.A. Graham, and D.O. Northwood, Canadian Report, Atomic Energy Control Board (1986).
4. T.L. Yau and V.E. Annamalai, Reference Module in Materials Science and Materials Engineering (2016).
5. J.A. Richardson and A.A. Abdullahi, Reference Module in Materials Science and Materials Engineering (2018).