Umar, T, Umeokafor, N, Vali, MSH and Zia, A (2022) A Comparative Study of Occupational Safety and Health (OS&H) Regulations in United States, United Kingdom, Australia, South Africa, and Oman. In: IOP Conference Series: Earth and Environmental Science , 1101. (22nd CIB World Building Congress, 27th June to 30th June 2022, Australia).

Umar, T, Tahir, A, Umeokafor, N, Nawarathna, A, Zia, A and Vali, MSH (2022) An Experimental Investigation on Strength Characteristics of Concrete Using Wastepaper Sludge Ash (WPSA). In: CITC-12 Proceedings . (CITC-12 -12th International Conference on Construction in the 21st Century, May 16th - 19th 2022, Jordan).