Mohammed, D. H., & Mohammed, A. M. (2023). EFFECT OF THE BALANCED AND NANO-COMPOSITE NPK FERTILIZER ON THE VITALITY OF THE EARTHWORM Octolasion cyanieum AND ITS EFFECT ON THE HISTOLOGICAL COMPOSITION OF THE MIDDLE OF THE BODY. Nativa, 11(2), 241–250. https://doi.org/10.31413/nat.v11i2.15905