Haqa, I.- ul-., University, G. C., Qadeer, M. A. and Ali, S. (2004) “COMPARISON OF HYPER PRODUCER ASPERGILLUS NIGER CULTURES (IFS-5, IFS-6 AND IFS-17) FOR CITRIC ACID FERMENTATION IN SURFACE CULTURE: Short Communication”, Biological Sciences - PJSIR, 47(5), pp. 403–405. Available at: https://v2.pjsir.org/index.php/biological-sciences/article/view/1560 (Accessed: 18 May 2024).