Ja’afaru, M. I., B. J. Pola, Pukuma, M. S., and E. Ijabani, “Screening of Heavy Metals Tolerance among Beta-Lactamase Producing Bacteria from Contaminated Soil and Waste Water of Some Abattoirs in Adamawa State”, UJMR, vol. 10, no. 3, pp. 1–11, Jun. 2025.