1] C. A. Akemann, G. K. Pedersen and J. Tomiyama, Multipliers of C*-algebras, J. Funct. Anal., 13 (1973), 277–301.
[2] E. Ansari-Piri, M. Shams Yousefi and S. Nouri, On the boundedness of almost multipliers on certain Banach algebras, J. Lin. Top. Alg., (2) 4 (2015), 143–152.
[3] E. Beckenstein, L. Narici and Ch. Suffel, Topological algebras, North Holland Math. Studies 24, North-Holland Publ. Co., Amsterdam, 1977.
[4] N. Christopher Phillips, Inverse limits of C∗-algebra, J. Operator Theory, 19 (1988), 159–195.
[5] A. Derighetti, Convolution operators on groups, Lecture Notes of the Unione Matematica Italiana 11, Springer–Verlag, Berlin Heidelberg, 2011.
[6] P. Eymard, L’algebre de Fourier d’un groupe locallement compact, Bull. Soc. Math. France, 92 (1964), 181–236.
[7] L. A. Khan, N. Mohammad and A. B. Thaheem, Double multipliers on topological algebras, Int. J. Math. Sci., (3) 22 (1999), 629–636.
[8] R. Larsen, An introduction to the theory of multipliers, Springer, Berlin, 1971.
[9] K. B. Laursen and M. Mbekhta, Closed range multipliers and generalized inverses, Studia Math., 107 (1993), 127–135.
[10] J. B. Pier, Amenable locally compact groups, Wiely, New york, 1980.
[11] U. B. Tewari, M. Dutta, and D. P. Vaidya, Multipliers of group algebras of vector-valued functions, Proc. Amer. Math. Soc., (2) 81 (1981), 223–229.
[12] A. Ulger, Multipliers with closed range on commutative semisimple Banach algebras, Studia Math., (1) 153 (2002), 59–80.
)