A. Fowotade Sulayman, Hamisu Abdu, A. Abdullah Saidu, Fadhila Ahmad, J. Zainab Suleiman, and Saleh, Isyaku, “Assessment of Atmospheric Metal Pollution Biomonitoring Potential by Neem Tree (Azadirachta indica) Leaves in Katsina Metropolitan Area of Katsina State, Nigeria”, CASTR-V3, pp. 37–45, May 2021.