“COMPARISON OF HYPER PRODUCER ASPERGILLUS NIGER CULTURES (IFS-5, IFS-6 AND IFS-17) FOR CITRIC ACID FERMENTATION IN SURFACE CULTURE: Short Communication” (2004) Biological Sciences - PJSIR, 47(5), pp. 403–405. Available at: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/1560 (Accessed: 10 March 2026).