An Economic Analytical Study on the Constraints of Agricultural Development in Libya and use of Self-Sufficiency Rates of Wheat and Barley as a Model during the Period 2000–2020. Journal of Knowledge Crown, [S. l.], v. 3, n. 2, p. 144–120, 2026. DOI: 10.64943/jkc.2025.030206. Disponível em: https://histt.edu.ly/ojs/index.php/tajournal/article/view/123. Acesso em: 22 may. 2026.