N. M. Kassim, A. N. Anuar, N. A. Sharani, A. M. Aris, and B. C. Khor, “Aerobic Sludge Granulation Process in a 4-h Sequencing Batch Reactor for Treating Low Strength Wastewater”, Chemical Engineering Transactions, vol. 106, pp. 1153-1158, Dec. 2023.