Title: Essential Permutations & Combinations: A Self-Teaching Guide, Author: Tim Hill
Title: Combinatorics Decoded, Author: A K Pandey
Title: Counting Wonders: The Science of Combinatorics, Author: Lexa N. Palmer
Title: Finite Element Analysis: Basics for Undergraduate Engineering Students, Author: Ramakrishnan Vaidyanathan
Title: Introduction to Series and Basic Statistics, Author: Simone Malacrida