1.
Ahmed S, Ashtewi M, Abuattwan T. Determination of total and available phosphorus in soil samples collected from Tarhuna, Libya using spectrophotometry. JAZU. 2024;(49):712-727. تاريخ الوصول ديسمبر 23, 2025. https://azzujournal.com/index.php/azujournal/article/view/260