Liu, Yingguang (2015) Is HIV-1 Losing Fitness Due to Genetic Entropy? Answers Research Journal, 8: 24. pp. 339-351. ISSN 1937-9056

Liu, Yingguang (2015) Mutations in the nef Gene Make HIV-1 More Virulent. Answers Research Journal, 8: 22. pp. 323-326. ISSN 1937-9056

Liu, Yingguang (2015) Cyclic Selection in HIV-1 Tropism: Microevolution That Is Going Nowhere. Answers Research Journal, 8: 16. pp. 199-202. ISSN 1937-9056

Liu, Yingguang and Soper, Charles (2009) The Natural History of Retroviruses. Answers Research Journal, 2: 8. pp. 97-106. ISSN 1937-9056

Liu, Yingguang (2009) Did Gene Duplication Produce Gene Families? Creation Research Society Quarterly, 45 (3): 2.