P. Geetha, and Dr.Olive Thambi. “A Biographical Study on The Life of Paulo Coelho in The Light of Abraham Maslow’s Hierarchy of Needs Theory”. History Research Journal 5, no. 6 (December 5, 2019): 2136-2142. Accessed November 30, 2022. https://history.thematicsjournals.org/index.php/hrj/article/view/15084.