Abdullah, R., Farooq, I., Kaleem, A., Iqtedar, M. and Iftikhar, T. (2018) “Pectinase production from Aspergillus niger IBT-7 using solid state fermentation”, Bangladesh Journal of Botany, 47(3), pp. 473-478. doi: 10.3329/bjb.v47i3.38714.