Zia Ullah, Kashif Daud, Engr. Asad Ullah Khan, Mamoor Ahmed Khan, Sajid Ismail, Engr. Abdul Rafay Khan, and Uzair Ali. “IMPLEMENTATION OF 4D BIM IN PAKISTAN: A SYSTEMATIC REVIEW OF CHALLENGES AND OPPORTUNITIES”. Spectrum of Engineering Sciences, vol. 3, no. 10, Oct. 2025, pp. 1820-33, https://www.thesesjournal.com/index.php/1/article/view/1493.