Arvas, O. Et Al. 2011. Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey. AFRICAN JOURNAL OF BIOTECHNOLOGY , vol.10, no.73 , 16508-16515.

Arvas, O., Celebi, S. Z., & Yilmaz, I. H., (2011). Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey. AFRICAN JOURNAL OF BIOTECHNOLOGY , vol.10, no.73, 16508-16515.

Arvas, Ösmetullah, Şeyda Zorer Çelebi, And Ibrahim Hakki Yilmaz. "Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey," AFRICAN JOURNAL OF BIOTECHNOLOGY , vol.10, no.73, 16508-16515, 2011

Arvas, Ösmetullah Et Al. "Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey." AFRICAN JOURNAL OF BIOTECHNOLOGY , vol.10, no.73, pp.16508-16515, 2011

Arvas, O. Celebi, S. Z. And Yilmaz, I. H. (2011) . "Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey." AFRICAN JOURNAL OF BIOTECHNOLOGY , vol.10, no.73, pp.16508-16515.

@article{article, author={Ösmetullah Arvas Et Al. }, title={Effect of sewage sludge and synthetic fertilizer on pH, available N and P in pasture soils in semi-arid area, Turkey}, journal={AFRICAN JOURNAL OF BIOTECHNOLOGY}, year=2011, pages={16508-16515} }