Muhammad Burhan KhanNisar, HumairaHumairaNisarNg Choon Aun2025-01-032025-01-03201810.1109/ACCESS.2017.2780249https://dspace-cris.utar.edu.my/handle/123456789/10147Image Processing and Analysis of Phase-Contrast Microscopic Images of Activated Sludge to Monitor the Wastewater Treatment Plantsjournal-article