A.G. MUGUNTHAKUMAR; K. NANDHINI; S. NANDHINI. An empirical study on reason for unhappiness in human life with refrence to Erode . International journal of intellectual advancements and research in engineering computations, [S. l.], v. 6, n. 2, p. 1023–1026, 2018. Disponível em: https://ijiarec.com/ijiarec/article/view/599. Acesso em: 5 may. 2024.