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Restoration of soil fertility by using organic and mineral amendments: the case of the urban perimeter of Franceville (Gabon)
Maurice Ognalaga, Pherla Ichida Oyanadigui Odjogui, Alain Ondo Azi, Jacques Ndzoutsi
Int. J. Agron. & Agric. Res. 7(2), 163-172, August 2015.