Lal, S. and Singh, P.N. 2002. Degree of approximation of conjugate of $ {Lip(\alpha,p)}$ function by ${(C,1)}$ ${(E,1)}$ means of conjugate of a Fourier series. Tamkang Journal of Mathematics. 33, 3 (Sep. 2002), 269–274. DOI:https://doi.org/10.5556/j.tkjm.33.2002.269-274.