T. Eng-Lai, C. C.S, K. G.G, and S. C.K, “Sequence Variations of the Latent Membrane Protein 1 of Epstein-Barr Virus Isolates from Cases of Malaysian Nasopharyngeal Carcinoma: A Preliminary Study”, Malaysian J. Sci., vol. 26, no. 1, pp. 23–33, Apr. 2007.