Karzoun, AbdulHadi Mohammed, et al. “Approximation of Function Belonging To Generalized Lipschitz Class Using Euler Submethod (E,p,q)_λ”. Journal of Natural Sciences, Life and Applied Sciences, vol. 3, no. 2, June 2019, pp. 40-30, https://doi.org/10.26389/AJSRP.K160219.