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Articles by A.A. Yusuf (2)

Zinc Soil Test Calibration Based on 0.1 N HCl Extractable Zinc and Cation Exchange Capacity from Upland Soils of Northern Nigeria

N. Abdu, A.A. Yusuf, A. Abdulkadir, U.L. Arunah, V.O. Chude and S.G. Pam

Journal of Agronomy 6 ( 1 ): 179 - 182 , 2007

Seasonal Variation in the Physical Characteristics of the Copepod Calanus finmarchicus (Gunnerus) Along the North Atlantic

A.A. Yusuf and L. Webster

Journal of Biological Sciences 8 ( 1 ): 95 - 100 , 2008