Tfaij, Ali L., Abdul Mehdi S. Al-Ansari, and Meiad M. Al- Jaberi. 2019. “Activity and Thermodynamic Parameters of Urease Enzymes in Soils Treated With Some Heavy Metals Under Different Temperatures and Moisture Levels”. Basrah Journal of Agricultural Sciences 32 (November):193-206. https://doi.org/10.37077/25200860.2019.268.