Boran, Ahmad M, Nabil A Al-Bashir, Ahed J Al-Khatib, Ilham T Qattan, Saud A Alanazi, and Adnan M Massadeh. “INVESTIGATING THE RELATIONSHIP BETWEEN MENTAL RETARDATION AND LEAD INTOXICATION”. European Scientific Journal, ESJ 9, no. 6 (February 28, 2013). Accessed July 11, 2025. https://eujournal.org/index.php/esj/article/view/816.