Alomari, M. W. “A Companion of Dragomir’s Generalization of Ostrowski’s Inequality and Applications in Numerical Integration”. Ukrains’kyi Matematychnyi Zhurnal 64, no. 4 (April 25, 2012): 435-450. Accessed April 17, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2588.