1. [1] V. H. An and H. H. Khoai, On uniqueness for meromorphic functions and their n-th derivative, Ann. Univ. Sci. Budapest. Sect. Comp., 47 (2018), pp. 117 - 126.
2. [2] S. S. Bhoosnurmath, R.S. Dyavanal, Uniqueness and value-sharing of meromorphic functions, Comput. Math. Appl.,53 (2007), 1191–1205.
3. [3] A. A. Goldberg and I. V. Ostrovskii, Value Distribution of Meromorphic Functions, Transla- tions of Mathematical Monographs, vol. 236, 2008.
4. [4] W. K. Hayman, Meromorphic Functions, Clarendon, Oxford,(1964).
5. [5] H. H. Khoai, V. H. An and P. N. Hoa, On functional equations for meromorphic functions and applications, Archiv Math., Vol. 109, Issue 6, (2017), pp 539549.