DR. ALI KHALID ABDALAA; ASST. PROF .DR. ZAHID Q. BADAN; MAAN ABOOD ALI. Measuring the effect of happiness on GDP in Iraq for the period (1990-2019). Czech Journal of Multidisciplinary Innovations, [S. l.], v. 11, p. 95–107, 2022. Disponível em: https://peerianjournal.com/index.php/czjmi/article/view/371. Acesso em: 13 nov. 2024.