Daryak، J. S. (2009). Water Erosion Effects On Soil's Plant Nutrients Pool In Some Soils Of Al-Jabal Al-Akhder , Libya. مجلة الجامعي، ع17 ، 61 - 78. مسترجع من http://search.mandumah.com/Record/770511
Daryak، Jamal Said. "Water Erosion Effects On Soil's Plant Nutrients Pool In Some Soils Of Al-Jabal Al-Akhder , Libya." مجلة الجامعي ع17 (2009): 61 - 78. مسترجع من http://search.mandumah.com/Record/770511