A. Shaheen and R. Baqai, “Biofilm Formation by Environmental Microbes Isolated from Hospitals in Karachi, Pakistan”, ASRJETS-Journal, vol. 15, no. 1, pp. 240–251, Jan. 2016, Accessed: Sep. 27, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/1238