Hassan, Zainab Flaih, Roaa Aziz Fadhil, and Ali Mohammed Hassan. “Numerical Method for Evaluation Triple Integrals by Using midpoint’s Rule”. JOURNAL OF ADVANCES IN MATHEMATICS 11, no. 1 (August 4, 2015): 3960–3968. Accessed July 22, 2024. https://rajpub.com/index.php/jam/article/view/1294.