Johnson, I. M., Prakash, H., Prathiba, J., Raghunathan, R., & Malathi, R. (2012). Spectral Analysis of Naturally Occurring Methylxanthines (Theophylline, Theobromine and Caffeine) Binding with DNA. Public Library of Science.

Johnson, Irudayam Maria, Halan Prakash, Jeyaguru Prathiba, Raghavachary Raghunathan, and Raghunathan Malathi. Spectral Analysis of Naturally Occurring Methylxanthines (Theophylline, Theobromine and Caffeine) Binding With DNA. Public Library of Science, 2012.

Johnson, Irudayam Maria, et al. Spectral Analysis of Naturally Occurring Methylxanthines (Theophylline, Theobromine and Caffeine) Binding With DNA. Public Library of Science, 2012.