“The causal relationship between public spending and economic growth within the framework of Wagner’s law and Keynes’ hypothesis: an applied study on the Libyan economy during the period (1980-2021)” (2024) مجلة جامعة سرت للعلوم الانسانية, 14(1), pp. 35–23. doi:10.37375/sujh.v14i1.2777.