سهاد أحمد عبد الله. The effect of time series stability in estimating the investment function. Iraqi Journal for Administrative Sciences, كربلاء، جمهورية العراق, v. 9, n. 37, p. 333–362, 2025. Disponível em: https://journals.uokerbala.edu.iq/index.php/ijas/article/view/3037. Acesso em: 22 jan. 2025.