Gupta, M., and U. K. Shrivastav. “Degree of Approximation of Function of Class $Z^{\omega}(\alpha,\gamma)$ by Matrix - Cesaro Means of Its Fourier Series”. International Journal of Mathematics And Its Applications, vol. 12, no. 3, Sept. 2024, pp. 67-74, https://ijmaa.in/index.php/ijmaa/article/view/1494.