Nwogu, Uchechi Emmanuella, Angela Chika Udebuani, Tochukwu Nicholas Ugwu, Jude Chimezie Ajaraogu, and Chidinma Yvonne Iro. 2023. “Techniques in Chitosan Extraction from Indigenous Crab and Utilization in Bio-Filtration of Crude Oil Polluted Water”. Sustinere: Journal of Environment and Sustainability 7 (3):266-80. https://doi.org/10.22515/sustinere.jes.v7i3.361.