Samira Elweliyed, Masauda Alshatory, and Aisha Alshanoukie. “Assessment of Long-Term Cultivation on Soil Properties and Heavy Metal Levels in Greenhouse”. African Journal of Advanced Pure and Applied Sciences (AJAPAS), vol. 4, no. 1, Mar. 2025, pp. 382-9, https://aaasjournals.com/index.php/ajapas/article/view/1182.