Rahseparfard, Kheirollan. “AN APPROACH TO INTERPOLATION BY INTEGRATION”. Proceedings of the YSU A: Physical and Mathematical Sciences 43, no. 2 (219) (June 26, 2009): 21–25. Accessed September 20, 2024. https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol43_no2_2009_pp021-025.