1. Ali Akbar K, Some Results in Linear, Symbolic and General Topological Dynamics, PhD thesis (2010) (University of Hyderabad)
2. Ali Akbar K, Periods of endomorphisms on an abelian group, Topology Proceedings (2013) vol. 42, pp. 341–347
3. Ali Akbar K, Kannan V, Gopal Sharan and Chiranjeevi P, The set of periods of periodic points of a linear operator, Linear Algebra Appl., 431 (2009) 241–246
4. Apostol Tom M, Introduction to Analytic Number Theory, Springer International Student Edition (1989) (New Delhi, India: Narosa Publishing House)
5. Baker I N, Fix-points of polynomials and rational functions, J. London Math. Soc., 39 (1964) 615–622