Abdul-Hadi, Shimal Y., and Aswan H. Al-Bayyar. 2019. “EXTRACTION, PURIFICATION AND CHARACTERIZATION OF EXTRACELLULAR PULLULANASE BY KLEBSIELLA PNEUMONIAE ISOLATED FROM SOIL”. Pakistan Journal of Biotechnology 16 (1):41-46. https://doi.org/10.34016/pjbt.2019.16.1.7.