https://pictures.abebooks.com/isbn/9783319746470-us.jpg Summability Calculus@A Comprehensive Theory of Fractional Finite Sums@By: Ibrahim M. Alabdulmohsin@Publisher: @Springer@Print ISBN: 9783319746470, 3319746472@eText ISBN: 9783319746487, 3319746480@Copyright year: 2018@Format: EPUB@Available from $ 89.99 USD@SKU: 9783319746487 Ebooks here: https://ouo.io/L5OoZ6