Pham, H.H.G., Le, G.L., Tran, D.K., Vo, K.N., Phan, T.N.P., Nguyen, M.P., Dien , T.B. and Ho, Q.P. 2024. Investigation on manhole sludge in Can Tho City. CTU Journal of Innovation and Sustainable Development . 16, Special issue: ICCEE (May 2024), 58-63. DOI:https://doi.org/10.22144/ctujoisd.2024.282.