Mamuru, S., Bello, A., & Hamman, S. (2015). Annona Squamosa Leaf Extract as an Efficient Bioreducing Agent in the Synthesis of Chromium and Nickel Nanoparticles. International Journal of Applied Sciences and Biotechnology, 3(2), 167-169. https://doi.org/10.3126/ijasbt.v3i2.11651